FAQs

Frequently Asked Questions


Carbide-tipped masonry bits or diamond-tipped bits for very hard stone.

Ship auger bits or flex bits for drilling through studs and joists.

Commonly available from 6 inches, 8 inches, 9 inches, 10 inches, 12 inches, 15 inches, 18 inches, 24 inches, 36 inches, 48 inches, 60 inches & 72 inches with “aircraft extension” bits even longer.

Commonly used in drill presses, milling machines, and lathes equipped with Morse taper spindles or arbors.

Typically high-speed steel (HSS) for general use, cobalt for hard metals, and carbide-tipped for masonry or abrasive materials.

Usually high-speed steel (HSS) for general-purpose drilling, with cobalt or carbide options for harder materials.

Concrete, brick, block, stone, mortar, and some tile. They’re especially effective on dense, abrasive materials.

High Speed Steel versions work well in wood, plastics, and softer metals like aluminum, mild steel, and brass.

They’re ideal for concrete, brick, block, and stone. With the right bit, they can handle reinforced concrete as well.

Steel, stainless steel, cast iron, aluminum, brass, and other metals — with the right material and coating for the job.