DISSTON COMPANY 504704 1/2" x 12" Extra Length High Speed Steel Black Oxide Drill Bit

1/2" x 12" High Speed Steel Drill Bit

The DISSTON COMPANY 504704 is an extra length drill bit made from high speed steel with a black oxide finish. It features a 135 degree point angle with four cutting edges that eliminate walking and provide fast penetration. The tempering treatment reduces frictional resistance and improves chip flow. This accessory is designed for use with power drills in workshop and job site applications.

Upgrade From Standard Length Bits

This 12 inch extra length bit replaces shorter standard bits when drilling through thick workpieces or reaching confined spaces. The jump is worth it when the material depth exceeds the reach of a typical jobber length bit. The black oxide coating extends service life compared to uncoated high speed steel in the same dimensions. The 135 degree point improves starting accuracy on curved or slippery surfaces.

Suited For Wood, Plastic And Soft Metals

This bit suits tradespeople and DIY users drilling wood, plastic, wallboard, plywood, aluminium, brass and bronze. It handles occasional work in stainless steel and other hard metals. Builders who need a second bit for high volume production drilling in hard alloys should look at something else. Users requiring a reduced shank for smaller chucks will need a different shank configuration.