Cobalt Aircraft Type "D" Drills
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135° Split Point
Designed for handling the higher thrust loads when drilling tough high tensile
and heat resistant alloy steels like stainless steels, titanium, and inconel. Due
to its heavy web 135º split point, short flute and jobber length construction,
it provides for a more rigid tool, eliminating vibration, and flexing.

Fractional Sizes

Letter Sizes

Sets

Wire Gauge Sizes