Vulcan 363741OR Aircraft Twist Drill Bit, High Speed Steel, 1/2 x 12

Highlights:

• Material : High speed steel
• Diameter : 1/2
• Type : Aircraft. twist
• Overall length : 12
• Shank type : 3-Flat
• Point angle : 135 deg
• Point type : Split
• All 3/16 and larger have 3 flats on the shank so that the chuck gets a better grip on the bit