The Aminatech quick change bi-metal hole saws feature Progressor tooth geometry, combining cutting teeth with specially designed chip-removal teeth for super-fast cutting action in metal and wood.
Features:
1.Progressor tooth design for faster cutting and longer life
2.Reinforced shoulder for increased strength
3. 8% cobalt alloy has higher heat resistance
Specifications:
Size: 6 bi-metal hole saws, 7/8"(22mm) 1-1/8"(29mm) 1-3/8"(35mm) 1-3/4"(44mm) 2-1/8"(54mm) 2-1/2" (64mm)
Accessories Included:1/4 in.arbor,7/16in.arbor,and arbor adapter