INDEX Page no. HSS Straight Shank Jobber Drills grou Flute 03-06 To IS: 5101 / DIN: 338 / BS: 328 / I.S.O. HSS Straight Shank Stub Series Drills 07-09 To IS: 5100 / DIN: 1897 / BS: 328 / I.S.O. HSS Straight Shank Long Series Drills 10-12 To IS: 5102 / DIN: 340 / BS: 328 / I.S.O. HSS Straight Shank Extra Long Series Drills 13 To IS: 7823 / DIN: 340 / BS: 328 / I.S.O. HSS Taper Shank Twist Drills 14-17 To IS: 5103 / DIN: 345 / BS: 328 / I.S.O. HSS Taper Shank Twist Drills (Long Series) 18-20 To IS: 8305 1976 HSS Taper Shank Twist Drills (Extra Long Series) 21-24 HSS Centre Drills 25 HSS Square Tool Bits 26 Staard Masonry Drills 27 Super Granit Masonry Drills 28 HSS Jobber Blanks 29 Notes 30 1. These are the current prices a supersede all previous price-lists. 2. Sales Tax, Octroi a Other Govt. Levies will be charged extra as applicable. 3. Prices are F.O.R. Destination 4. Prices are subject to revision without prior notice a all peing orders, if any, will be invoiced at the rates ruling on the date of delivery. 5. Dealers are free to charge lower than the Maximum Recommeed Retail Price. 6. Please refer to us for Centre Drills with special dimensions. 7. For HSS Square Tool Bits, orders to be in multiple of 10 numbers upto 1/2" Square. 8. All legal proceedings are subject to Mumbai Jurisdiction. www.jksuperdrive.com 02
HSS Straight Shank Jobber Drills Grou Flute To IS: 5101 / DIN: 338 / BS: 328 / I.S.O. PRICES IN RUPEES PER 10 NOS. 773 773 773 773 711 711 649 676 618 618 402 402 402 402 402 402 402 402 402 402 402 402 402 426 426 426 428 428 428 428 428 428 428 428 444 428 428 428 428 444 444 444 444 444 444 444 444 444 436 436 436 436 460 460 444 444 444 460 460 460 460 460 460 567 567 567 621 621 621 621 621 621 621 791 844 844 03 www.jksuperdrive.com
HSS Straight Shank Jobber Drills Grou Flute To IS: 5101 / DIN: 338 / BS: 328 / I.S.O. PRICES IN RUPEES PER 10 NOS. 844 844 844 844 844 829 829 829 1014 1014 1014 1014 1014 1014 1033 1033 1033 1259 1259 1259 1259 1259 1259 1295 1417 1417 1417 1417 1352 1352 1352 1352 1352 1352 1352 1548 1548 1548 1548 1548 1548 1548 1548 1723 1723 1723 1723 1723 1723 1723 1723 1908 1908 1908 1908 1943 1943 1943 1943 2429 2429 2429 2429 2429 2429 2429 2642 2642 2642 2642 2642 2857 2857 2857 2857 2857 www.jksuperdrive.com 04
HSS Straight Shank Jobber Drills Grou Flute To IS: 5101 / DIN: 338 / BS: 328 / I.S.O. PRICES IN RUPEES PER 10 NOS. 2857 3082 3082 3197 3197 3197 3197 3382 3382 3382 3382 3382 3984 3984 4175 4175 4175 4175 4175 4175 4393 4393 4393 4393 4393 4578 4578 4578 4578 4578 4578 4578 4578 5211 5211 5211 5211 5211 5704 5704 5704 5704 5704 5704 5991 5991 5991 6279 6279 6279 6279 6279 6639 6639 6639 6639 7423 7423 7423 7423 7423 7827 7827 7827 7827 7827 8339 8339 8339 8339 8339 8873 8873 8873 8873 9095 05 www.jksuperdrive.com
HSS Straight Shank Jobber Drills Grou Flute To IS: 5101 / DIN: 338 / BS: 328 / I.S.O. PRICES IN RUPEES PER 10 NOS. 9353 9353 9353 11609 11609 11609 11609 12361 12361 12361 12361 12361 13665 13665 13665 13665 14072 14072 14072 15452 15452 15452 15452 16394 16394 17296 17296 17296 Jobber Drill Set 1/16" to 1/4" (13 pc) : - 1261 Jobber Drill Set 2.00 to 8.00 mm (13 pc) : - 1885 Jobber Drill Set 1/16" to 1/ 2" (29 pc) : - 11078 Jobber Drill Set 1/ 8" to 1/ 4" (4 pc) : - 456 Jobber Drill Set 3/ 32" to 1/ 4" (7 pc) : - 735 Jobber Drill Set 1/ 16" to 1/ 2" (29 pc) : - 10469 Jobber Drill Set 1.00 to 13.00 mm (25 pc) : - 8100 Special notes: 1. Intermediate, unlisted sizes, price of the next larger listed size will be charged. 2. Quick Spiral or Slow Spiral drills upto sizes 3.17 mm a sizes over 3.17 mm will be charged 50% a 25% Extra respectively. 3. Jobber Series Drills with Tenon can be supplied at 20% extra for sizes upto 6.50 mm 10% extra for sizes over 6.50 mm. 4. All sizes can be ordered in multiple of 10 only. www.jksuperdrive.com 06
HSS Straight Shank Stub Series Drills To IS: 5100 / DIN: 1897 / BS: 328 / I.S.O. PRICES IN RUPEES PER 10 NOS. 415 415 415 415 415 415 415 399 399 399 399 399 458 469 535 578 578 578 760 760 760 867 867 1061 1061 1061 1154 1154 1154 1269 1269 1425 1425 1446 1628 1628 1968 1968 1968 2174 2174 2174 2236 2452 2499 2756 2756 2756 3544 3544 3678 3678 3678 3884 3884 3884 4079 4317 4975 4975 4975 5305 5305 6005 6005 6005 6294 6660 7129 7129 7129 7066 7066 7066 7705 7705 07 www.jksuperdrive.com
HSS Straight Shank Stub Series Drills To IS: 5100 / DIN: 1897 / BS: 328 / I.S.O. PRICES IN RUPEES PER 10 NOS. 7931 7931 7931 9745 10421 10421 10421 10827 10827 10827 11783 12797 12797 12797 12797 13887 13887 13887 13887 13942 13942 13942 14247 14247 14497 14497 14508 14726 14726 14944 14944 14944 15217 15217 15217 15555 15555 15555 15555 15751 16122 16122 16122 16743 16743 16928 16928 16928 17757 17757 17757 18879 18879 19141 19141 19141 20220 20220 20220 20220 22345 22345 22345 22345 24536 24536 24667 24667 27839 27839 28460 28460 28744 30357 30357 32090 www.jksuperdrive.com 08
HSS Straight Shank Stub Series Drills To IS: 5100 / DIN: 1897 / BS: 328 / I.S.O. PRICES IN RUPEES PER 10 NOS. Special notes: 32090 32363 32363 33987 37355 37355 37845 37845 42598 42598 42598 43219 43219 44396 45486 45486 45486 45486 47939 47939 52615 52615 52615 57814 58675 58675 58675 58675 58675 63035 63983 63983 63983 63983 71428 71428 72714 72714 1. Intermediate or non-listed sizes, price of the next larger listed size will be charged. 2. Quick Spiral or Slow Spiral drills upto sizes 3.17 mm (1/8 ) a sizes over 3.17 mm (1/8 ) will be charged 50% a 25% Extra respectively, subject to minimum ordering value worth Rs. 10,000/- per size. 3. All sizes upto dia 13.00mm to be can be ordered in multiple of 10 only. 09 www.jksuperdrive.com
HSS Straight Shank Long Series Drills To IS: 5102 / DIN: 340 / BS: 328 / I.S.O. 280 280 280 280 280 280 280 280 280 280 280 280 280 280 280 280 351 351 351 351 351 351 351 351 351 351 351 351 351 351 320 351 351 346 381 381 381 381 381 381 381 381 381 381 381 381 381 381 381 438 438 438 438 438 511 511 511 511 570 570 570 570 570 570 628 642 628 585 817 817 978 978 978 978 978 978 www.jksuperdrive.com 10
HSS Straight Shank Long Series Drills To IS: 5102 / DIN: 340 / BS: 328 / I.S.O. 978 978 978 978 978 978 978 978 978 978 1006 1006 1006 1006 1006 1006 1006 1006 1021 1066 1066 1066 1284 1123 1268 1284 1123 1123 1297 1297 1166 1297 1166 1400 1588 1588 1473 1473 1706 1517 1706 1706 1517 1561 1734 1734 1561 1561 2375 2157 2404 2404 2199 2404 2609 2609 2404 2404 2404 2520 2768 2520 2520 2520 2609 2609 2609 2609 2653 2653 2956 2709 2709 2768 2768 3000 11 www.jksuperdrive.com
HSS Straight Shank Long Series Drills To IS: 5102 / DIN: 340 / BS: 328 / I.S.O. 2768 2768 2956 2956 3264 3000 3000 3000 3132 3436 3191 3191 3191 3365 3685 3365 3365 3365 3584 3801 3584 3584 3584 3685 3685 4036 3801 3801 4036 4036 4312 4036 4036 4355 4355 4660 4457 4457 4457 4529 5329 4952 4952 4952 5155 5635 5155 5155 5155 5535 5535 5609 5609 6902 6902 7047 7047 7047 7601 7601 7761 7761 7761 7922 7922 8009 8009 8009 8009 8751 8867 8867 8867 8867 8940 9116 9116 9116 9116 9231 9231 9420 9420 9420 10017 10017 10192 10192 10192 11344 11344 11750 11750 Special notes: 1. Intermediate, unlisted sizes, price of the next larger listed size will be charged. 2. Quick Spiral or Slow Spiral drills upto sizes 3.17 mm a sizes over 3.17 mm will be charged 70% a 35% Extra respectively. 3. Long Series Drills with Tenon can be supplied at 10% extra for sizes upto 6.50 mm 5% extra for sizes over 6.50 mm. 4. The minimum ordering value per size should be worth Rs. 10,000/- www.jksuperdrive.com 12
HSS Straight Shank Extra Long Series Drills To IS: 7823 / DIN: 340 / BS: 328 / I.S.O. 833 773 530 758 1257 1831 516 516 516 516 516 516 487 487 487 652 939 682 637 652 652 652 652 652 652 652 652 939 925 925 879 1045 803 758 758 758 758 758 789 1181 789 789 789 1121 1121 1121 1060 1060 1107 1045 1045 1060 1090 1090 1152 1181 1604 1271 1271 1271 1271 1316 1332 1332 1408 1453 1453 1453 1468 1453 1453 1498 1529 1529 1620 1620 1649 2073 2073 2088 2209 2209 2436 2436 2405 2405 2391 2480 2480 2527 2737 2737 1711 1711 1982 1982 1982 1982 2028 2028 2164 2223 2767 2043 2043 2194 2209 2209 2209 2255 2255 2405 2405 2465 3084 3084 3115 3463 3296 3643 3448 3417 3417 3554 3554 3478 3780 3780 3749 3749 3993 4007 4007 4247 2587 2587 2905 2905 2905 2905 2918 2918 3221 3221 3191 3372 3372 3599 3976 3976 4144 4144 4189 4189 4189 4174 4279 4369 4597 4597 4672 4672 5019 5019 5125 5125 5125 2846 2846 3195 3195 3195 3195 3211 3211 3544 3544 3511 3710 3710 3959 4375 4375 4558 4558 4609 4609 4609 4592 4708 4806 5057 5057 5140 5140 5521 5521 5638 5638 5638 3656 3656 3730 3805 3805 3829 3829 3829 4891 4891 4940 5188 5188 5706 5706 4570 4570 4521 4656 4656 5262 5682 5682 5631 5631 6249 6249 6249 6558 6558 4038 3993 3993 4097 4174 4174 4189 4189 5367 5367 5442 5746 5746 6349 6349 5080 5080 5033 5231 5231 5941 6440 6440 6379 6379 7135 7165 7165 7589 7589 4476 4476 4565 4656 4656 4687 4687 4687 5986 5986 6047 6349 6349 6984 6984 5593 5593 5532 5699 5699 6440 6953 6953 6894 6894 7648 7648 7648 8026 8026 Special notes: 1. Intermediate, unlisted sizes (in Dia a Length) price of next larger listed size will be charged. 2. For sizes below dia 9.00 mm max. Flute length which can be provided is 350mm. 3. For specials a unlisted sizes please refer to us. 4. Minimum ordering value per size should be worth Rs. 15,000/- gross. 5. Other details will be mentioned as per IS:7823. 13 www.jksuperdrive.com
HSS Taper Shank Twist Drills To IS: 5103 / DIN: 345 / BS: 328 / I.S.O. 412 412 426 412 426 426 412 412 555 555 555 555 555 555 555 555 555 555 555 555 555 639 625 639 639 639 676 676 676 676 664 664 664 664 766 808 750 766 850 810 850 850 810 810 909 962 855 931 962 1176 1223 1135 1135 1223 1188 1188 1188 1188 1314 1213 1213 1213 1213 1213 1213 1644 1713 1713 1713 1841 1841 1913 1913 2004 www.jksuperdrive.com 14
HSS Taper Shank Twist Drills To IS: 5103 / DIN: 345 / BS: 328 / I.S.O. 2004 2094 2094 2094 2094 2214 2244 2244 2244 2244 2159 2259 2259 2259 2310 2310 2310 2310 2310 2310 2354 2443 2472 2672 2672 2672 2672 2672 2654 2654 2654 2654 2789 2789 2789 2789 2789 2942 3042 3042 3042 3042 3163 3163 3297 3297 3297 3342 3342 3402 3402 3402 3648 3648 3776 3776 3776 3972 0 3568 4511 4511 4511 4511 4630 4459 4459 4719 4459 4929 4929 4989 4989 5692 5692 5659 15 www.jksuperdrive.com
HSS Taper Shank Twist Drills To IS: 5103 / DIN: 345 / BS: 328 / I.S.O. 5659 5659 5691 6350 6074 6074 6338 6247 6247 6335 6335 6335 6335 6861 6876 6876 6876 6876 7431 7205 7205 7205 7205 7232 7232 7447 7447 8015 8310 8310 8437 8437 8437 9401 9401 9810 9810 10572 10743 10743 10743 10743 11000 11000 11000 11476 11691 11691 12074 12682 12810 12682 12682 13448 13448 13448 13646 13928 13928 13928 13928 14269 14269 15202 16327 16327 16327 15910 15910 16857 16857 16857 16857 17282 17580 www.jksuperdrive.com 16
HSS Taper Shank Twist Drills To IS: 5103 / DIN: 345 / BS: 328 / I.S.O. 17580 18274 18274 18274 18274 18995 18995 19364 18995 19477 19477 19718 20183 20183 20183 20183 20893 20893 20893 20893 21386 21386 21386 22349 22349 22349 22349 23481 23481 23481 23481 23978 23978 23978 26143 26143 26143 26325 26325 26325 26325 26610 26610 26610 26822 28025 28025 28025 0 38430 38430 38430 38430 38430 53850 49523 49523 49523 49523 49523 52012 52012 52012 52012 52012 54206 54206 54206 54206 54206 59160 59160 59160 59160 59160 60292 60292 60292 60292 Special notes: 1. Intermediate, unlisted sizes, price of the next larger listed size will be charged. 2. Quick Spiral or Slow Spiral drills will be charged 25% Extra. 3. Over size shank drills to IS:5104 in the following range 10% Extra will be charged. 17 www.jksuperdrive.com
HSS Taper Shank Twist Drills (Long Series) To IS: 8305-1976 1312 1328 1341 1356 1356 1356 1356 1356 1778 1778 1778 1793 1806 1778 1968 2041 1778 1895 1997 1982 1968 2011 1968 1806 2025 2215 2011 2230 2448 2273 2419 2623 2492 2375 2623 2505 2404 2448 2505 2505 2956 2593 2956 2593 2593 2986 3394 3394 3394 3394 3410 3423 3423 3496 3584 3700 3830 3830 3830 3830 4822 5112 5112 5009 5009 5112 5039 5068 5068 5068 5068 5198 5215 5215 www.jksuperdrive.com 18
HSS Taper Shank Twist Drills (Long Series) To IS: 8305-1976 5388 5563 5563 5563 5563 5609 5651 5753 5853 5941 6059 6173 6173 6173 6173 6218 6246 6246 6408 6583 6583 6583 6583 6290 6015 6059 6101 6101 6232 6365 6365 7033 7717 7833 7934 7934 8024 8096 8459 8824 8854 8940 9026 9026 9696 10352 10484 10629 10687 10847 10993 11095 11198 11198 11443 11690 11690 11925 11474 11022 11022 11139 11532 11939 11939 14443 14689 14924 14924 14966 14966 15666 16364 16510 16510 19 www.jksuperdrive.com
HSS Taper Shank Twist Drills (Long Series) To IS: 8305-1976 Special notes: 16757 17019 17296 17296 17325 17354 17354 17718 17499 17280 17280 17558 17399 17237 17237 17994 18140 19581 22186 22448 22726 23119 23496 24122 23716 23309 23409 23527 24939 25623 26307 26846 27181 27515 28403 29289 29159 29610 30062 30951 31839 31839 32245 32654 33745 34837 34837 35521 36206 36206 36672 37137 38009 38898 38898 39583 40267 40267 40267 41214 42422 43630 43630 46542 48885 48885 48885 49904 52436 54970 55173 55376 55376 55290 55217 55217 1. Intermediate, unlisted sizes, price of the next larger listed size will be charged. 2. Minimum ordering value per size should be worth Rs. 10,000/- gross. www.jksuperdrive.com 20
HSS Taper Shank Twist Drills (Extra Long Series) 1861 1861 1800 2147 2056 1982 1982 2223 2223 2133 2345 2254 2254 2313 2436 2436 2510 2465 2979 2963 3069 3069 2209 2283 2209 2404 2313 2450 2450 2496 2496 2390 2631 2525 2525 2600 2736 2736 2736 2767 3340 3340 3447 3447 3340 3340 3340 2450 2540 2465 2678 2572 2722 2722 2767 2767 2662 2934 2813 2813 2889 3039 3039 3039 3084 3720 3703 3824 3824 3720 3720 3720 4401 4731 4731 5306 5306 5306 5261 5382 5412 5774 5774 2692 2799 2707 3235 3114 3008 3008 3358 3358 3220 3508 3372 3372 3461 3659 3659 3659 3703 4097 4083 4219 4219 4504 4504 4504 5685 6122 6122 5835 5835 5835 5759 5926 5926 6182 6182 3008 3176 3069 3614 3477 3340 3340 3735 3735 3599 3992 3841 3841 3946 4142 4142 4142 4202 4460 4446 4596 4596 5019 5019 5019 6212 6681 6681 6363 6363 6363 6289 6470 6470 6742 6742 3176 3069 3614 3477 3340 3340 3735 3735 3599 3992 3841 3841 3946 4142 4142 4142 4202 4460 4446 4596 4596 5019 5019 5019 6212 6681 6681 6363 6363 6363 6289 6470 6470 6742 6742 3614 3780 3659 3916 3765 4037 4037 4504 4761 4761 4565 4565 4686 4943 4943 4943 5005 5849 5427 5609 5609 6047 6047 6047 6726 7240 7240 7588 7588 7588 7482 7709 7709 8026 8026 4157 5396 5849 5835 6030 6030 5866 6515 6515 7240 7799 7799 8177 8177 8177 8072 8299 8299 8645 8645 6303 6969 6953 7179 7179 7678 7678 7678 8736 9385 9190 9552 8177 9552 9417 9703 9703 10111 10111 www.jksuperdrive.com 21
HSS Taper Shank Twist Drills (Extra Long Series) 6923 6923 7150 7150 7240 7240 7438 7996 7936 8268 8268 8555 8722 9311 9311 9492 10369 10474 10474 10655 6923 6923 7150 7150 7240 7240 7438 7996 7936 8268 8268 8555 8722 9311 9311 9492 10369 10474 10474 10655 12060 8254 8254 8525 8525 8616 8616 8872 8707 8601 8962 8962 9280 9446 10081 10081 10292 11230 11350 11350 11548 12982 12982 14055 14208 15220 15809 15809 15855 17335 17094 17094 17894 17969 18346 18346 18559 8887 8887 9175 9175 9280 9280 9552 9325 9249 9644 9644 9991 10172 10867 10867 11078 12091 12212 12212 12424 13919 15052 15052 15220 16308 16941 16941 16987 18573 18316 18316 19178 19253 19647 19647 19889 10383 10383 10715 10715 10851 10851 11169 11003 10896 11366 11366 11775 11985 11638 11638 11865 12952 13088 13088 13315 www.jksuperdrive.com 22
HSS Taper Shank Twist Drills (Extra Long Series) 6726 7438 7406 7664 7664 7143 8177 8177 8463 10021 9794 10187 10187 10187 10051 10337 10337 10776 10776 11078 11078 11441 11441 11576 11576 11910 11729 11638 12135 12135 12543 12787 12408 12408 12665 13813 13964 13964 14208 14842 16065 16065 12180 12180 12180 12016 12362 12362 12877 12877 13255 13255 13677 13677 13827 13827 14236 13602 13482 14055 14055 14554 14826 14508 14508 14796 16156 16308 16308 16987 17350 18770 18770 12892 12892 12892 12725 13088 13088 13647 14026 14026 14026 14479 14479 14645 14645 15069 14404 14266 14888 14888 15415 15688 15355 15355 15673 17108 17275 17275 17984 18363 19873 19873 16126 16126 15914 16367 16367 17062 17547 17547 17547 18105 18105 18316 18316 18847 18363 18211 18982 18982 19647 20010 17698 17698 18045 19691 19889 19889 21082 21142 22896 22896 16987 16987 16745 17230 17230 17969 17969 18469 18469 19059 19059 19285 19285 19844 19332 19164 19980 19980 20690 21068 18620 18620 18982 20734 20932 20932 22201 22263 24091 24091 23 www.jksuperdrive.com
HSS Taper Shank Twist Drills (Extra Long Series) 16232 17395 18061 18061 18120 19812 19541 19541 20448 20538 20961 20961 21203 21203 21838 22367 22367 23229 25661 25661 26251 27460 27460 28427 28427 31147 31843 18982 18484 19194 19194 19253 22110 21792 21792 22821 22911 23394 23394 23939 23939 24650 25238 25238 26220 27262 27262 27898 29183 29183 30195 30195 32975 33822 20099 19571 20312 20312 20388 23394 23077 23077 24165 24255 24770 24770 25344 25344 26098 26734 26734 27763 28880 28880 29545 30889 30889 31978 31978 34924 35817 23138 22729 23591 23591 23665 25872 25511 25511 26720 26824 27383 27383 26750 26750 27566 28215 28215 29303 32385 32385 35333 36948 36948 38250 38250 39322 40320 24362 23924 24832 24832 24921 27234 26856 26856 28126 28230 28820 28820 28170 28170 29002 29698 31978 30844 34653 34094 37192 37312 38899 40275 38719 41392 42451 44248 44248 45971 48178 49871 51048 51048 52638 52638 55281 60706 60706 61159 60977 35832 36693 36693 38113 35786 35786 39050 40847 40847 42285 42285 46170 47362 Special notes: 1. Intermediate, unlisted sizes (in Dia a Length) price of next larger listed size will be charged. 2. All sizes (in Dia a Length ) should be ordered in multiples of 5 upto dia 25.40 mm. 3. Minimum ordering value per size should be worth Rs. 15,000 /- gross. 4. For specials a unlisted sizes please refer to us. 5. Other details will be maintained as per IS:7822 www.jksuperdrive.com 24
HSS Centre Drills 238 238 238 238 266 391 488 808 474 678 855 1133 1349 238 238 266 414 522 883 25 www.jksuperdrive.com
HSS Square Tool Bits 129 163 254 140 174 244 154 211 347 200 232 376 511 293 384 598 776 611 938 1195 817 1290 1720 2153 2929 204 304 557 266 355 582 342 482 758 405 531 847 1200 633 847 1301 1818 1390 2097 2866 1945 2904 3889 4823 6426 254 380 810 342 456 758 443 621 986 531 708 1125 1618 860 1125 1780 2488 1907 2791 3914 2626 3851 5265 6450 8609 266 393 821 355 468 772 456 633 999 544 720 1137 1630 885 1151 1807 2513 1933 2828 3964 2652 3889 5329 6527 8698 www.jksuperdrive.com 26
Staard Masonry Drills 81 88 95 115 128 113 219 197 252 226 316 282 282 27 www.jksuperdrive.com
Super Granite Masonry Drills 135 151 162 189 216 189 251 328 425 376 527 467 467 www.jksuperdrive.com 28
HSS Jobber Blanks PRICES IN RUPEES PER 10 NOS. 731 633 611 611 415 426 447 524 535 665 753 1069 1101 1189 1319 1461 1832 2126 2355 2431 2671 3205 3325 3510 3946 4546 4807 5080 5679 5974 6399 6737 7107 29 www.jksuperdrive.com
Useful Tips for Drilling Use the shortest drill possible for the specific applications as Longer drills are : 1. More costly 2. Break easily 3. Drill bell mouthed holes Avoid the teency to over speed a uer feed as Excessive speed causes: 1. Premature outer corner drill wear 2. Material work hardening 3. Long, stringy chips 4. Reduced drill life 5. Increased cost per hole Optimising feed rate: 1. Helps break up chips 2. Reduces premature outer corner drill wear 3. Reduces material work hardening 4. Extes drill life 5. Reduces cost per hole Use split point drills for drilling alloy materials as it benefits: 1. Start at the point of contact (selfcentering) 2. Drill with less torque a thrust 3. Break up chips A hole of three drill diameters or deeper should be considered a deep hole. Therefore, you should peck drill just enough to prevent chips from packing in the flutes, because chip clogging is the major cause of drill breakage. When drilling harder materials (i.e. above HRC 35) : 1. Reduce speeds a feeds to prevent points from burning a drilling breakage. 2. Use cobalt drills as their higher hardness a heavy-duty construction are designed for drilling hardermaterials. Use steam tempered. The black oxide surface laser holds the coolants a lubricates to the surface of the drill retarding material build-up. This treatment also improves toughness. You should decrease speeds a feeds as follows: Use coolant whenever possible, this will keep the drill cooler. Chip welding a breakage are also reduced. Coolant helps the drill to last a will give the drill a better chance of operating without failing. Chips should be short a broken up. Keep drills sharp! Sharp drills perform better a last longer. Sharp drills also increase productivity a have a reduced teency to break. Chuck drill on shank area only, not in the flute area Speed a feed Reduction (Based upon hole depth) Holes Depth To Diameter Ratio (times drill diameter) 3 4 5 6 Speed Reduction 10% 20% 30% 35-40% Feed Reduction 10% 10% 20% 20% www.jksuperdrive.com 30
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