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  • Product Image-Style 175 Solid Carbide, Koolcarb®, Extra Length Drill
  • Dimensional Drawing
Submicron carbide grade provides maximum wear resistance when cutting tool steels, titanium, cast aluminum, bronze, cast iron, plastics, and other abrasive materials.
  • Coolant feeding S.C. Koolcarb double margin drills provide excellent hole straightness and smoother finish.
  • 125° four facet web thinned point starts best into a larger point angle.
  • Carbide body increases penetration rate over gundrills for use on machining centers.
  • Smaller diameters available to 0.1181” (3.0 mm), larger diameters and step constructions available up to 0.9483” (25.0 mm).
  • Straight flute, right hand cut.
  • Allow 2.5 x Ø up to 1/4” (6.35mm), 2 x Øup to 7/16” (11.1mm) and over 7/16” allow 1.5 x Ø of flute for chip exit.
  • Some tool holders and stop screws with a single, central coolant hole may require a coolant groove be added to the shank end of the drill.
  • 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)

N/A 1/8 N/A 3.175 N/A 0.1250 N/A 5 1/4 N/A 133 N/A 2 7/8 N/A 73
N/A N/A 3.5 N/A 0.1378 N/A 5 9/16 N/A 141 N/A 3 1/8 N/A 79
N/A 9/64 N/A 3.571 N/A 0.1406 N/A 5 9/16 N/A 141 N/A 3 1/8 N/A 79
N/A 5/32 N/A 3.967 N/A 0.1562 N/A 5 29/32 N/A 150 N/A 3 15/32 N/A 88
N/A N/A 4 N/A 0.1575 N/A 5 29/32 N/A 150 N/A 3 15/32 N/A 88
N/A 11/64 N/A 4.366 N/A 0.1719 N/A 6 7/32 N/A 158 N/A 3 3/4 N/A 95
N/A N/A 4.5 N/A 0.1772 N/A 6 9/16 N/A 167 N/A 4 1/8 N/A 105
N/A 3/16 N/A 4.763 N/A 0.1875 N/A 6 9/16 N/A 167 N/A 4 1/8 N/A 105
N/A N/A 5 N/A 0.1969 N/A 6 7/8 N/A 175 N/A 4 7/16 N/A 113
N/A 13/64 N/A 5.159 N/A 0.2031 N/A 6 7/8 N/A 175 N/A 4 7/16 N/A 113
N/A N/A 5.5 N/A 0.2165 N/A 7 7/32 N/A 183 N/A 4 3/4 N/A 121
N/A 7/32 N/A 5.558 N/A 0.2188 N/A 7 7/32 N/A 183 N/A 4 3/4 N/A 121
N/A 15/64 N/A 5.954 N/A 0.2344 N/A 7 1/2 N/A 191 N/A 5 N/A 127
N/A N/A 6 N/A 0.2362 N/A 7 1/2 N/A 191 N/A 5 N/A 127
N/A 1/4 N/A 6.35 N/A 0.2500 N/A 7 7/8 N/A 200 N/A 5 7/16 N/A 138
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