The Starrett KDP07051-N 12-Piece Fastcut Bimetal Industrial Hole Saw Kit includes seven hole saws in diameters from 3/4'' to 2-1/8'', two arbors, one extension, one ejector spring, and one arbor adaptor. Bimetal hole saws have high-speed steel teeth with an alloy steel backing for cutting ferrous and nonferrous metal, wood, and plastic. The saws have a variable tooth pitch and positive rake angle for efficient cutting and chip evacuation. The kit comes in a plastic case with a handle.

Hole saws cut holes in various materials with a drill. They are hollow cylinders made of metal with teeth on one end and an arbor hole or built-in arbor on the other end.

The L.S. Starrett Company manufactures precision measuring tools, metrology and testing equipment, and saw blade products. The company was founded in 1880 and is headquartered in Athol, MA.

What's in the Box?

• (7) hole saws in diameters 3/4'' (19 mm), 7/8'' (22 mm), 1'' (25 mm), 1-1/4'' (32 mm), 1-1/2'' (38 mm), 1-3/4'' (44 mm), and 2-1/8'' (54 mm)
• (2) arbors, sizes A1 and A2
• (1) 12" extension, size A5
• (1) ejector spring, size A7
• (1) arbor adaptor, size A12
• (1) plastic case