7pc 1" hole saw set 1.Material:carbon steel 2.Usage:For wood cutting 3.Size: ... 26mm, 32mm, 38mm, 45mm, 50mm, 56mm, 63mm, 7pc 1" hole saw setSize: 26mm, 32mm, 38mm, 45mm, 50mm, 56mm, 63mm ... saws,kinds of drills(HSS drills, masonry drills, wood flat bits,auger bits and so on),and other tools.Also we recommend,