Carbide Tip "Hard Steel" Die Drill

 

150both.jpg (21680 bytes)

Style 150
  • Extra thick C-2/K20 carbide tip, very high temperature braze, and the heavy land construction withstand the heavy feed pressure necessary to penetrate hardened and case hardened steels over 45 Rc/421 Hb.
  • 118° cam relieved notched thinned point decreases the thrust needed to penetrate hard materials.
  • Straight flute, right hand cut, high speed steel bodies, heavy duty.

 
  • 20° negative rake and MN notch available for severe application drilling. Priced on request.
  • Produces reamer like hole finish, accurate hole size, and can be used for coring out pre-existing holes.
  • Allow 1.5_2 x Ø of flute for chip exit.
  • Also see solid carbide die drill Styles 151 & 155.
 
Diameter Tolerance
Nominal Size Cutting Æ Shank Æ
Inch mm Inch mm

Up To
D

 .2500 +.0000 +0.000 +.0000 +0.000
6.350 mm -.0010 -0.025 -.0015 -0.038
Over .2500 +.0000 +0.000 +.0000 +0.000
6.350 mm -.0015 -0.038 -.0015 -0.038

 

EDP # Cutting Æ "D" Dec Equiv. Overall Length "A" Flute Length "B" Usable Flute at Full Regrind "F" Shank Diameter "C" Grind Down Range Ineffective Flute Length
Inch/Wire mm Inch Inch mm Inch mm Inch mm Inch mm Inch mm Inch mm
15001719 11/64 4.366 .1719 3-1/2 89 1-1/2 38 0.92 23 5/32 3.967 .1701-.1920 4.321-4.877 .34 9
15001875 3/16 4.763 .1875 3-1/2 89 1-1/2 38 0.92 23 11/64 4.366 .1701-.1920 4.321-4.877 .34 9
15001969   5. .1969 3-3/4 95 1-3/4 44 1.1 28   4.5 .1921-.2230 4.879-5.664 .41 10
15002031 13/64 5.159 .2031 3-3/4 95 1-3/4 44 1.1 28 3/16 4.763 .1921-.2230 4.879-5.664 .41 10
15002165   5.5 .2165 3-3/4 95 1-3/4 44 1.1 28   5 .1921-.2230 4.879-5.664 .41 10
15002188 7/32 5.558 .2188 3-3/4 95 1-3/4 44 1.1 28 13/64 5.159 .1921-.2230 4.879-5.664 .41 10
15002344 15/64 5.954 .2344 4 102 2 51 1.3 34 7/32 5.558 .2231-.2550 5.667-6.477 .40 10
15002362   6. .2362 4 102 2 51 1.3 34   5.5 .2231-.2550 5.667-6.477 .40 10
15002500 1/4 6.35 .2500 4 102 2 51 1.3 34 15/64 5.954 .2231-.2550 5.667-6.477 .40 10
15002559   6.5 .2559 4-1/4 108 2-1/4 57 1.5 38   6 .2551-.2860 6.48-7.264 .49 13
15002656 17/64 6.746 .2656 4-1/4 108 2-1/4 57 1.5 38 1/4 6.35 .2551-.2860 6.48-7.264 .49 13
15002756   7. .2756 4-1/4 108 2-1/4 57 1.5 38   6.5 .2551-.2860 6.48-7.264 .49 13
EDP # Cutting Æ "D" Dec Equiv. Overall Length "A" Flute Length "B" Usable Flute at Full Regrind "F" Shank Diameter "C" Grind Down Range Ineffective Flute Length
Inch/Wire mm Inch Inch mm Inch mm Inch mm Inch mm Inch mm Inch mm
15002812 9/32 7.142 .2812 4-1/4 108 2-1/4 57 1.5 38 17/64 6.746 .2551-.2860 6.48-7.264 .49 13
15002953   7.5 .2953 4-1/2 114 2-1/2 64 1.7 44   7 .2861-.3170 7.267-8.052 .46 12
15002969 19/64 7.541 .2969 4-1/2 114 2-1/2 64 1.7 44 9/32 7.142 .2861-.3170 7.267-8.052 .46 12
15003125 5/16 7.938 .3125 4-1/2 114 2-1/2 64 1.7 44 19/64 7.541 .2861-.3170 7.267-8.052 .46 12
15003150   8. .3150 4-1/2 114 2-1/2 64 1.7 44   7.5 .2861-.3170 7.267-8.052 .46 12
15003281 21/64 8.344 .3281 4-3/4 121 2-3/4 70 2 50 5/16 7.938 .3171-.3480 8.054-8.839 .47 12
15003346   8.5 .3346 4-3/4 121 2-3/4 70 2 50   8 .3171-.3480 8.054-8.839 .47 12
15003438 11/32 8.733 .3438 4-3/4 121 2-3/4 70 2 50 21/64 8.334 .3171-.3480 8.054-8.839 .47 12
15003543   9. .3543 5 127 3 76 2.2 56   8.5 .3481-.3800 8.842-9.652 .48 12
15003594 23/64 9.129 .3594 5 127 3 76 2.2 56 11/32 8.733 .3481-.3800 8.842-9.652 .48 12
15003740   9.5 .3740 5 127 3 76 2.2 56   9 .3481-.3800 8.842-9.652 .48 12
15003750 3/8 9.525 .3750 5 127 3 76 2.2 56 23/64 9.129 .3481-.3800 8.842-9.652 .48 12
EDP # Cutting Æ "D" Dec Equiv. Overall Length "A" Flute Length "B" Usable Flute at Full Regrind "F" Shank Diameter "C" Grind Down Range Ineffective Flute Length
Inch/Wire mm Inch Inch mm Inch mm Inch mm Inch mm Inch mm Inch mm
15003906 25/64 9.921 .3906 5-1/4 133 3 76 2.1 53 3/8 9.525 .3801-.4110 9.655-10.439 .57 14
15003937   10. .3937 5-1/4 133 3 76 2.1 53   9.5 .3801-.4110 9.655-10.439 .57 14
15004062 13/32 10.317 .4062 5-1/4 133 3 76 2.1 53 25/64 9.921 .3801-.4110 9.655-10.439 .57 14
15004134   10.5 .4134 5-1/2 140 3 76 2.1 53   10 .4111-.4420 10.442-11.227 .65 17
15004219 27/64 10.716 .4219 5-1/2 140 3 76 2.1 53 13/32 10.317 .4111-.4420 10.442-11.227 .65 17
15004331   11. .4331 5-1/2 140 3 76 2.1 53   10.5 .4111-.4420 10.442-11.227 .65 17
15004375 7/16 11.113 .4375 5-1/2 140 3 76 2.1 53 27/64 10.716 .4111-.4420 10.442-11.227 .65 17
15004528   11.5 .4528 5-3/4 146 3-1/4 83 2.2 56   11 .4421-.4730 11.229-12.014 .62 16
15004531 29/64 11.509 .4531 5-3/4 146 3-1/4 83 2.2 56 7/16 11.113 .4421-.4730 11.229-12.014 .62 16
15004688 15/32 11.908 .4688 5-3/4 146 3-1/4 83 2.2 56 29/64 11.509 .4421-.4730 11.229-12.014 .62 16
15004724   12. .4724 5-3/4 146 3-1/4 83 2.2 56   11.5 .4421-.4730 11.229-12.014 .62 16
15004844 31/64 12.304 .4844 6 152 3-1/2 89 2.4 61 15/32 11.908 .4731-.5050 12.017-12.827 .68 17
EDP # Cutting Æ "D" Dec Equiv. Overall Length "A" Flute Length "B" Usable Flute at Full Regrind "F" Shank Diameter "C" Grind Down Range Ineffective Flute Length
Inch/Wire mm Inch Inch mm Inch mm Inch mm Inch mm Inch mm Inch mm
15004921   12.5 .4921 6 152 3-1/2 89 2.4 61   11.5 .4731-.5050 12.017-12.827 .68 17
15005000 1/2 12.7 .5000 6 152 3-1/2 89 2.4 61 15/32 11.908 .4731-.5050 12.017-12.827 .68 17
15005118   13. .5118 6 152 3-1/2 89 2.4 61   12.5 .5051-.5360 12.83-13.614 .70 18
15005312 17/32 13.492 .5312 6 152 3-1/2 89 2.4 61 1/2 12.7 .5051-.5360 12.83-13.614 .70 18
15005315   13.5 .5315 6 152 3-1/2 89 2.4 61   12.5 .5051-.5360 12.83-13.614 .70 18
15005512   14. .5512 6 152 3-1/2 89 2.4 61   13 .5361-.5670 13.617-14.402 .63 16
15005625 9/16 14.288 .5625 6 152 3-1/2 89 2.4 61 17/32 13.492 .5361-.5670 13.617-14.402 .63 16
15005938 19/32 15.083 .5938 7 178 4 102 2.9 74 9/16 14.288 .5671-.5990 14.404-15.215 .65 16
15006250 5/8 15.875 .6250 7 178 4 102 2.8 72 19/32 15.083 .5991-.6300 15.217-16.002 .58 15
15006562 21/32 16.667 .6562 7-1/2 191 4-1/2 114 3.3 84 5/8 15.875 .6301-.6610 16.005-16.789 .65 17
15006875 11/16 17.463 .6875 7-1/2 191 4-1/2 114 3.2 82 21/32 16.667 .6611-.6930 16.792-17.602 .71 18
15007188 23/32 18.258 .7188 8 203 4-3/4 121 3.5 88 11/16 17.463 .6931-.7240 17.605-18.39 .61 16
EDP # Cutting Æ "D" Dec Equiv. Overall Length "A" Flute Length "B" Usable Flute at Full Regrind "F" Shank Diameter "C" Grind Down Range Ineffective Flute Length
Inch/Wire mm Inch Inch mm Inch mm Inch mm Inch mm Inch mm Inch mm
15007500 3/4 19.05 .7500 8 203 4-3/4 121 3.4 87 23/32 18.258 .7241-.7560 18.392-19.202 .68 17
15008125 13/16 20.638 .8125 8 203 4-3/4 121 3.3 84 25/32 19.842 .7561-.8190 19.205-20.803 .69 18
15008750 7/8 22.225 .8750 8 203 4-3/4 121 3.2 82 27/32 21.433 .8191-.8820 20.805-22.403 .76 19
15009375 15/16 23.813 .9375 8 203 4-3/4 121 3.2 82 29/32 23.017 .8821-.9450 22.405-24.003 .80 20
15010000 1 25.4 1.000 8 203 4-3/4 121 3.1 80 31/32 24.608 .9451-1.0070 24.006-25.578 .90 23

 

Using the Die Drill as a Reamer or Core Drill

More than a few customers are using the die drill configuration as a very effective reamer or core drill for producing close diameter smooth holes.

Many years ago we discovered the sizing characteristics of the straight fluted die drill. But because the straight flute cannot "lift chips" out of the hole to the depth that can be drilled from the solid it is limited to several diameters at most. That's why we developed the Koolcarb coolant feeding style drills. But in reaming or core drilling the die drill can be used to many more diameters than with drilling from the solid.

When using the die drill as a reamer and where an extra fine finish is desired, reducing the margin width to the .010 to .015" width normally used on reamers is often helpful. In the size range up to ½" diameter the die drill has a decided price advantage compared to the price of a carbide tipped reamer or core drill.

 

 
INDEX

Last Updated on 03/04/02
By Bob Novak Media Development
Copyright Ó1999 CJT KOOLCARB Inc.