High Speed Steel Black and Bronze Fractional Set 21 Piece
Thunderbit® drills have a special heavy-duty core that guarantess increased strength and reduced breakage. Unique spiral flute design improves chip ejection and coolant flow to the point. 3-flat shank reduces slippage in the drill chuck, 135 split point.
Features:
3-flats shank to eliminate slippage in 3 jaw chucks when using handheld power tools
Unique spiral flute design improves chip ejection and coolant flow
Heavy-duty core for increased strength and reduced breakage
135° self-centering split point to prevent walking
Black and Gold surface treatment for added lubricity and higher drilling speeds
Jobber length for most general applications
Made in USA
Applications:
Drilling in medium strength alloy materials
Portable drilling in metal
Applications that require handheld power tools
Tech Tips:
Speed, feed, and lube are all critical to cutting tool performance
