Hole Saw Kit suppliers 1銆?/strong>Wood Hole Saw Kit Wood hole saw kit鈥檚 body is made of high-quality die-cast zinc and coated with an environmentally friendly powder coating, which is applied using a state-of-the-art closed-circulation coating system. After use, apply a small amount of anti-rust oil on the surface of the hole opener to avoid natural oxidation, which can increase door hole...