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Terms
Straight flute, right hand cut, heavy web construction is ideal for high accuracy hole drilling in hard metal parts over 40 Rc/371 Hb and abrasive materials.
  • 135° modified four facet notched thinned point.
  • Submicron carbide grade.
  • Produces reamer like hole finish, accurate hole size and can be used for coring out pre-existing holes.
  • Clear chips frequently and leave 2 x Ø for chip exit.
  • Also see die drill Styles 150 & 151.
  • Shank Ø = Cutting Ø
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Item #

Cutting Ø "D" (Inch)

Cutting Ø "D" (mm)

Dec. Equiv. (Inch)

Overall Length "A" (Inch)

Overall Length "A" (mm)

Flute Length "B" (Inch)

Flute Length "B" (mm)

15500469 N/A 3/64 N/A 1.191 N/A 0.0469 N/A 1 1/2 N/A 38 N/A 1/2 N/A 13
15500625 N/A 1/16 N/A 1.588 N/A 0.0625 N/A 1 1/2 N/A 38 N/A 5/8 N/A 16
15500781 N/A 5/64 N/A 1.984 N/A 0.0781 N/A 1 11/16 N/A 43 N/A 11/16 N/A 17
15500938 N/A 3/32 N/A 2.383 N/A 0.0938 N/A 1 3/4 N/A 44 N/A 3/4 N/A 19
15501094 N/A 7/64 N/A 2.779 N/A 0.1094 N/A 1 13/16 N/A 46 N/A 13/16 N/A 21
15501250 N/A 1/8 N/A 3.175 N/A 0.1250 N/A 1 7/8 N/A 48 N/A 7/8 N/A 22
15501406 N/A 9/64 N/A 3.571 N/A 0.1406 N/A 1 15/16 N/A 49 N/A 15/16 N/A 24
15501562 N/A 5/32 N/A 3.967 N/A 0.1562 N/A 2 1/6 N/A 52 N/A 1 N/A 25
15501719 N/A 11/64 N/A 4.366 N/A 0.1719 N/A 2 1/8 N/A 54 N/A 1 1/16 N/A 27
15501875 N/A 3/16 N/A 4.763 N/A 0.1875 N/A 2 3/16 N/A 56 N/A 1 1/8 N/A 29
15502031 N/A 13/64 N/A 5.159 N/A 0.2031 N/A 2 1/4 N/A 57 N/A 1 3/16 N/A 30
15502188 N/A 7/32 N/A 5.558 N/A 0.2188 N/A 2 3/8 N/A 60 N/A 1 1/4 N/A 32
15502344 N/A 15/64 N/A 5.954 N/A 0.2344 N/A 2 7/16 N/A 62 N/A 1 5/16 N/A 33
15502500 N/A 1/4 N/A 6.35 N/A 0.2500 N/A 2 1/2 N/A 64 N/A 1 3/8 N/A 35
15502656 N/A 17/64 N/A 6.746 N/A 0.2656 N/A 2 5/8 N/A 67 N/A 1 7/16 N/A 37
15502812 N/A 9/32 N/A 7.142 N/A 0.2812 N/A 2 11/16 N/A 68 N/A 1 1/2 N/A 38
15502969 N/A 19/64 N/A 7.541 N/A 0.2969 N/A 2 3/4 N/A 70 N/A 1 9/16 N/A 40
15503125 N/A 5/16 N/A 7.938 N/A 0.3125 N/A 2 13/16 N/A 71 N/A 1 5/8 N/A 41
15503281 N/A 21/64 N/A 8.334 N/A 0.3281 N/A 2 15/16 N/A 75 N/A 1 11/16 N/A 43
15503438 N/A 11/32 N/A 8.733 N/A 0.3438 N/A 3 N/A 76 N/A 1 11/16 N/A 43
15503594 N/A 23/64 N/A 9.129 N/A 0.3594 N/A 3 1/16 N/A 78 N/A 1 3/4 N/A 44
15503750 N/A 3/8 N/A 9.525 N/A 0.3750 N/A 3 1/8 N/A 79 N/A 1 13/16 N/A 46
15503906 N/A 25/64 N/A 9.921 N/A 0.3906 N/A 3 1/4 N/A 83 N/A 1 7/8 N/A 48
15504062 N/A 13/32 N/A 10.317 N/A 0.4062 N/A 3 5/16 N/A 84 N/A 1 15/16 N/A 49
15504219 N/A 27/64 N/A 10.716 N/A 0.4219 N/A 3 3/8 N/A 86 N/A 2 N/A 51
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