Bi-Metal Hole Saw 135mm (5-5/16") M42 HSS (High Speed Steel) Hole Saw Drill Bit Cutter for Wood Plastic Metal Sheet Plasterboard DC Worm Gear Motors 1 x Rear Backrest Cover

1 x Rear Backrest Cover

1pcs x 110°C

It has good sealing performance and is not easy to slip

In the package of: Rigid Round Pipe

4 x Mic Stand Adapter

Bi-Metal Hole Saw 135mm (5-5/16") M42 HSS (High Speed Steel) Hole Saw Drill Bit Cutter for Wood Plastic Metal Sheet Plasterboard DC Worm Gear Motors 1 x Rear Backrest CoverThe bi metal hole saw combines high speed steel and cobalt. The hole saw body is made of superior grade M42 high speed steel, which has excellent hardness, wear resistance, and heat resistance. The cutting edges or teeth are made of a cobalt alloy, which further enhances hardness and heat resistance. The sprayed coating resists rust and corrosion. Sharp toothed edges allow for smooth, fast and easy cuts. Bi metal hole saws have larger numbers of