Carbide Double Margin Short Bore Drill / Bunisher

 

153both.jpg (15147 bytes) Style 153
  • Double margin drill burnishing construction produces reamer like finishes and resists walking when cutting through aluminum castings, cast iron, cored holes and angular surfaces.
  • Effective chip control up to 3.5 x Ø deep with flood coolant.
  • Submicron C2 carbide.
  • Excellent tool life and easy to regrind.
  • Straight flute, right hand cut.
  • Step drill and coolant feeding designs available upon request.
  • Allow 2.5 x Ø up to 1/4" (6.35 mm),
    2 x Ø up to 7/16" (11.1 mm), and over 7/16" allow 1.5 x Ø of flute for chip exit.
 

Diameter Tolerance

Nominal
Size

 Cutting Æ Shank Æ
Inch mm Inch mm
All +.0000 +0.000 +.0000 +0.000
-.0005 -0.013 -.0020 -0.025

 Shk Ø = Cut Ø     

 

EDP # Cutting Æ "D" Dec. Equiv. Overall Length "A" Flute Length "B"
Inch mm Inch Inch mm Inch mm
15300938 3/32 2.383 .0938 2-11/32 60 3/4 19
15300984   2.5 .0984 2-11/32 60 31/32 25
15301094 7/64 2.779 .1094 2-11/32 60 31/32 25
15301181   3. .1181 2-11/32 60 31/32 25
15301250 1/8 3.175 .1250 2-11/32 60 31/32 25
15301378   3.5 .1378 2-29/32 74 1-3/16 30
15301406 9/64 3.571 .1406 2-29/32 74 1-3/16 30
15301562 5/32 3.967 .1562 2-29/32 74 1-3/16 30
15301575   4. .1575 2-29/32 74 1-3/8 35
15301719 11/64 4.366 .1719 2-29/32 74 1-3/8 35
15301772   4.5 .1772 2-29/32 74 1-3/8 35
15301875 3/16 4.763 .1875 2-29/32 74 1-3/8 35
EDP # Cutting Æ "D" Dec. Equiv. Overall Length "A" Flute Length "B"
Inch mm Inch Inch mm Inch mm
15301969   5. .1969 2-29/32 74 1-1/2 38
15302031 13/64 5.159 .2031 2-29/32 74 1-1/2 38
15302165   5.5 .2165 2-29/32 74 1-1/2 38
15302188 7/32 5.558 .2188 2-29/32 74 1-1/2 38
15302344 15/64 5.954 .2344 3-5/8 92 1-23/32 44
15302362   6. .2362 3-5/8 92 1-23/32 44
15302500 1/4 6.35 .2500 3-5/8 92 1-23/32 44
15302559   6.5 .2559 3-5/8 92 1-7/8 48
15302656 17/64 6.746 .2656 3-5/8 92 1-7/8 48
15302756   7. .2756 3-5/8 92 1-7/8 48
15302812 9/32 7.142 .2812 3-5/8 92 1-7/8 48
15302953   7.5 .2953 3-7/8 98 2 51
EDP # Cutting Æ "D" Dec. Equiv. Overall Length "A" Flute Length "B"
Inch mm Inch Inch mm Inch mm
15302969 19/64 7.541 .2969 3-7/8 98 2 51
15303125 5/16 7.938 .3125 3-7/8 98 2 51
15303150   8. .3150 3-7/8 98 2-1/8 54
15303281 21/64 8.334 .3281 3-7/8 98 2-1/8 54
15303346   8.5 .3346 3-7/8 98 2-1/8 54
15303438 11/32 8.733 .3438 3-7/8 98 2-1/8 54
15303543   9. .3543 3-7/8 98 2-1/4 57
15303594 23/64 9.129 .3594 3-7/8 98 2-1/4 57
15303740   9.5 .3740 3-7/8 98 2-1/4 57
15303750 3/8 9.525 .3750 3-7/8 98 2-1/4 57
15303906 25/64 9.921 .3906 4-1/2 114 2-7/16 62
15303937   10. .3937 4-1/2 114 2-7/16 62
EDP # Cutting Æ "D" Dec. Equiv. Overall Length "A" Flute Length "B"
Inch mm Inch Inch mm Inch mm
15304062 13/32 10.317 .4062 4-1/2 114 2-7/16 62
15304134   10.5 .4134 4-1/2 114 2-9/16 65
15304219 27/64 10.716 .4219 4-1/2 114 2-9/16 65
15304331   11. .4331 4-1/2 114 2-9/16 65
15304375 7/16 11.113 .4375 4-1/2 114 2-9/16 65
15304528   11.5 .4528 5 127 2-3/4 70
15304531 29/64 11.509 .4531 5 127 2-3/4 70
15304688 15/32 11.908 .4688 5 127 2-3/4 70
15304724   12. .4724 5 127 2-7/8 73
15304844 31/64 12.304 .4844 5 127 2-7/8 73
15304921   12.5 .4921 5 127 2-7/8 73
15305000 1/2 12.7 .5000 5 127 2-7/8 73
EDP # Cutting Æ "D" Dec. Equiv. Overall Length "A" Flute Length "B"
Inch mm Inch Inch mm Inch mm
15305118   13. .5118 5-1/2 140 3-3/32 79
15305156 33/64 13.096 .5156 5-1/2 140 3-3/32 79
15305312 17/32 13.492 .5312 5-1/2 140 3-3/32 79
15305315   13.5 .5315 5-1/2 140 3-3/32 79
15305469 35/64 13.891 .5469 5-1/2 140 3-3/32 79
15305512   14. .5512 5-1/2 140 3-3/32 79
15305625 9/16 14.288 .5625 5-1/2 140 3-3/32 79
15305709   14.5 .5709 5-11/16 144 3-3/8 86
15305781 37/64 14.684 .5781 5-11/16 144 3-3/8 86
15305906   15. .5906 5-11/16 144 3-3/8 86
15305938 19/32 15.083 .5938 5-11/16 144 3-3/8 86
15306094 39/64 15.479 .6094 5-11/16 144 3-3/8 86
EDP # Cutting Æ "D" Dec. Equiv. Overall Length "A" Flute Length "B"
Inch mm Inch Inch mm Inch mm
15306102   15.5 .6102 5-11/16 144 3-3/8 86
15306250 5/8 15.875 .6250 5-11/16 144 3-3/8 86
15306299   16. .6299 5-11/16 144 3-21/32 93
15306875 11/16 17.463 .6875 5-11/16 144 3-21/32 93

 

 
INDEX

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