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  • Product Image- Style 171 Carbide Tip, Koolcarb®, Jobber Length Drill
  • Dimensional Drawing
Submicron carbide tip yields exceptional tool life in tool steels, cast and ductile irons, bronze, cast aluminum and other abrasive materials.
  • 125° four facet web thinned point starts best into a larger point angle. Not intended for interrupted cut drilling.
  • High speed “milled” body runs 2 to 4 times gun drill feeds on conventional equipment.
  • Longer carbide yields increased regrinds.
  • Straight flute, right hand cut.
  • Specials available to 1.535” (39.0 mm) Ø. Request intermediate sizes from grind down range.
  • Coolant feeding carbide tip Koolcarb construction provides straighter holes and smoother finish.
  • Shank Ø = Cutting Ø
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Request Information Compare Items Search by Specification

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)

Usable Flute at Full Regrind "F" (Inch)

Usable Flute at Full Regrind "F" (mm)

N/A 3/16 N/A 4.763 N/A 0.1875 N/A 4 N/A 102 N/A 2 N/A 51 N/A 1.3000 N/A 33
N/A N/A 5 N/A 0.1969 N/A 4 N/A 102 N/A 2 N/A 51 N/A 1.3000 N/A 33
N/A N/A 5.5 N/A 0.2165 N/A 4 1/4 N/A 108 N/A 2 1/4 N/A 57 N/A 1.5000 N/A 38
N/A 7/32 N/A 5.558 N/A 0.2188 N/A 4 1/4 N/A 108 N/A 2 1/4 N/A 57 N/A 1.5000 N/A 38
N/A 15/64 N/A 5.954 N/A 0.2344 N/A 4 29/32 N/A 125 N/A 2 1/2 N/A 64 N/A 1.7000 N/A 44
N/A N/A 6 N/A 0.2362 N/A 4 29/32 N/A 125 N/A 2 1/2 N/A 64 N/A 1.7000 N/A 44
N/A 1/4 N/A 6.35 N/A 0.2500 N/A 4 29/32 N/A 125 N/A 2 1/2 N/A 64 N/A 1.7000 N/A 44
N/A N/A 6.5 N/A 0.2559 N/A 4 29/32 N/A 125 N/A 2 1/2 N/A 64 N/A 1.7000 N/A 44
N/A 17/64 N/A 6.746 N/A 0.2656 N/A 5 5/32 N/A 131 N/A 2 3/4 N/A 70 N/A 1.9000 N/A 47
N/A N/A 7 N/A 0.2756 N/A 5 5/32 N/A 131 N/A 2 3/4 N/A 70 N/A 1.9000 N/A 47
N/A 9/32 N/A 7.142 N/A 0.2812 N/A 5 5/32 N/A 131 N/A 2 3/4 N/A 70 N/A 1.9000 N/A 47
N/A N/A 7.5 N/A 0.2953 N/A 5 19/32 N/A 142 N/A 3 3/16 N/A 81 N/A 2.3000 N/A 58
N/A 19/64 N/A 7.541 N/A 0.2969 N/A 5 19/32 N/A 142 N/A 3 3/16 N/A 81 N/A 2.3000 N/A 58
N/A 5/16 N/A 7.938 N/A 0.3125 N/A 5 19/32 N/A 142 N/A 3 3/16 N/A 81 N/A 2.3000 N/A 58
N/A N/A 8 N/A 0.3150 N/A 5 19/32 N/A 142 N/A 3 3/16 N/A 81 N/A 2.3000 N/A 58
N/A 21/64 N/A 8.334 N/A 0.3281 N/A 5 27/32 N/A 148 N/A 3 7/16 N/A 87 N/A 2.5000 N/A 64
N/A N/A 8.5 N/A 0.3346 N/A 5 27/32 N/A 148 N/A 3 7/16 N/A 87 N/A 2.5000 N/A 64
N/A 11/32 N/A 8.733 N/A 0.3438 N/A 5 27/32 N/A 148 N/A 3 7/16 N/A 87 N/A 2.5000 N/A 64
N/A N/A 9 N/A 0.3543 N/A 6 1/32 N/A 154 N/A 3 5/8 N/A 92 N/A 2.7000 N/A 69
N/A 23/64 N/A 9.129 N/A 0.3594 N/A 6 1/32 N/A 154 N/A 3 5/8 N/A 92 N/A 2.7000 N/A 69
N/A N/A 9.5 N/A 0.3740 N/A 6 1/32 N/A 154 N/A 3 5/8 N/A 92 N/A 2.7000 N/A 69
N/A 3/8 N/A 9.525 N/A 0.3750 N/A 6 1/32 N/A 154 N/A 3 5/8 N/A 92 N/A 2.7000 N/A 69
N/A 25/64 N/A 9.921 N/A 0.3906 N/A 6 9/32 N/A 159 N/A 3 7/8 N/A 98 N/A 2.9000 N/A 73
N/A N/A 10 N/A 0.3937 N/A 6 9/32 N/A 159 N/A 3 7/8 N/A 98 N/A 2.9000 N/A 73
N/A 13/32 N/A 10.317 N/A 0.4062 N/A 6 9/32 N/A 159 N/A 3 7/8 N/A 98 N/A 2.9000 N/A 73
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