Carbide Double Margin Long Bore Drill / Bunisher

 

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  • 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 -.0010 -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
15400938 3/32 2.383 .0938 2-15/16 75 31/32 25
15400984   2.5 .0984 3-9/32 83 1-9/32 33
15401094 7/64 2.779 .1094 3-9/32 83 1-9/32 33
15401181   3 .1181 3-9/32 83 1-9/32 33
15401250 1/8 3.175 .1250 3-9/32 83 1-9/32 33
15401378   3.5 .1378 3-1/2 89 1-9/16 40
15401406 9/64 3.571 .1406 3-1/2 89 1-9/16 40
15401562 5/32 3.967 .1562 3-1/2 89 1-9/16 40
15401575   4 .1575 3-29/32 99 1-7/8 48
15401719 11/64 4.366 .1719 3-29/32 99 1-7/8 48
15401772   4.5 .1772 3-29/32 99 1-7/8 48
15401875 3/16 4.763 .1875 3-29/32 99 1-7/8 48
EDP # Cutting Æ "D" Dec Equiv. Overall Length "A" Flute Length "B"
Inch mm Inch Inch mm Inch mm
15401969   5 .1969 3-29/32 99 2-1/16 52
15402031 13/64 5.159 .2031 3-29/32 99 2-1/16 52
15402165   5.5 .2165 3-29/32 99 2-1/16 52
15402188 7/32 5.558 .2188 3-29/32 99 2-1/16 52
15402344 15/64 5.954 .2344 5 127 2-5/16 59
15402362   6 .2362 5 127 2-5/16 59
15402500 1/4 6.35 .2500 5 127 2-5/16 59
15402559   6.5 .2559 5 127 2-9/16 65
15402656 17/64 6.746 .2656 5 127 2-9/16 65
15402756   7 .2756 5 127 2-9/16 65
15402812 9/32 7.142 .2812 5 127 2-9/16 65
15402953   7.5 .2953 5 127 2-13/16 71
15402969 19/64 7.541 .2969 5 127 2-13/16 71
EDP # Cutting Æ "D" Dec Equiv. Overall Length "A" Flute Length "B"
Inch mm Inch Inch mm Inch mm
15403125 5/16 7.938 .3125 5 127 2-13/16 71
15403150   8 .3150 5-1/2 140 3 76
15403281 21/64 8.334 .3281 5-1/2 140 3 76
15403346   8.5 .3346 5-1/2 140 3 76
15403438 11/32 8.733 .3438 5-1/2 140 3 76
15403543   9 .3543 5-1/2 140 3-3/16 81
15403594 23/64 9.129 .3594 5-1/2 140 3-3/16 81
15403740   9.5 .3740 5-1/2 140 3-3/16 81
15403750 3/8 9.525 .3750 5-1/2 140 3-3/16 81
15403906 25/64 9.921 .3906 5-1/2 140 3-7/16 87
15403937   10 .3937 5-1/2 140 3-7/16 87
15404062 13/32 10.317 .4062 5-1/2 140 3-7/16 87
EDP # Cutting Æ "D" Dec Equiv. Overall Length "A" Flute Length "B"
Inch mm Inch Inch mm Inch mm
15404134   10.5 .4134 5-7/8 149 3-11/16 94
15404219 27/64 10.716 .4219 5-7/8 149 3-11/16 94
15404331   11 .4331 5-7/8 149 3-11/16 94
15404375 7/16 11.113 .4375 5-7/8 149 3-11/16 94
15404528   11.5 .4528 5-7/8 149 3-29/32 99
15404531 29/64 11.509 .4531 5-7/8 149 3-29/32 99
15404688 15/32 11.908 .4688 5-7/8 149 3-29/32 99
15404724   12 .4724 6-5/16 160 4-1/8 105
15404844 31/64 12.304 .4844 6-5/16 160 4-1/8 105
15404921   12.5 .4921 6-5/16 160 4-1/8 105
15405000 1/2 12.7 .5000 6-5/16 160 4-1/8 105
15405118   13 .5118 6-5/8 168 4-7/16 113
EDP # Cutting Æ "D" Dec Equiv. Overall Length "A" Flute Length "B"
Inch mm Inch Inch mm Inch mm
15405156 33/64 13.096 .5156 6-5/8 168 4-7/16 113
15405312 17/32 13.492 .5312 6-5/8 168 4-7/16 113
15405315   13.5 .5315 6-5/8 168 4-7/16 113
15405469 35/64 13.891 .5469 6-5/8 168 4-7/16 113
15405512   14 .5512 6-5/8 168 4-7/16 113
15405625 9/16 14.288 .5625 6-5/8 168 4-7/16 113
15405709   14.5 .5709 6-11/16 170 4-7/8 124
15405781 37/64 14.684 .5781 6-11/16 170 4-7/8 124
15405906   15 .5906 6-11/16 170 4-7/8 124
15405938 19/32 15.083 .5938 6-11/16 170 4-7/8 124
15406094 39/64 15.479 .6094 6-11/16 170 4-7/8 124
15406102   15.5 .6102 6-11/16 170 4-7/8 124
EDP # Cutting Æ "D" Dec Equiv. Overall Length "A" Flute Length "B"
Inch mm Inch Inch mm Inch mm
15406250 5/8 15.875 .6250 6-11/16 170 4-7/8 124
15406299   16 .6299 6-11/16 170 4-7/8 124
15406875 11/16 17.463 .6875 6-11/16 170 4-7/8 124

 

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