We specialize in hard to find items
All Categories
Drill America GLBCO Cobalt Steel Aircraft Extension Drill Bit #51 Size, Round Shank, Spiral Flute, 135 Degrees Split Point, 12" Length, (Pack of 12)
Share Tweet
*Price and Stocks may change without prior notice
*Packaging of actual item may differ from photo shown
- Electrical items MAY be 110 volts.
- 7 Day Return Policy
- All products are genuine and original
- Cash On Delivery/Cash Upon Pickup Available
Drill America GLBCO Cobalt Steel Aircraft Extension Features
-
Effective in drilling tough, high tensile strength materials like stainless steel, inconel and titanium
-
135° split point tip prevents drill from walking
-
Round shanks allow use with a wide variety of tool holding systems
-
Gold oxide is a thinner oxide surface treatment than black oxide typically used to identify cobalt steel tools; performance is similar to uncoated tools
-
12" overall length for drilling where extra length for reach is required
About Drill America GLBCO Cobalt Steel Aircraft Extension
Drill America Cobalt Aircraft Extension Drills are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys. Gold oxide is a thinner oxide surface treatment than black oxide typically used to identify cobalt steel tools; performance is similar to uncoated tools. Drill America Aircraft Extension Drills are manufactured to National Aerospace Standard 907. The 135° split point is self-centering and reduces thrust. Sizes smaller than 1/16 in. have the 118° standard point. Drill America Aircraft Extension Drills are available in 6 in. and 12 in. overall lengths when extra reach is required.
