70mm M42 Metal Hole Saw Cutter Drill Bit

Description: 70mm M42 Metal Hole Saw Cutter Drill Bit Specification: Material M42 High Speed Steel Size 70x45mm Diameter of thread: 15mm Cutting hole depth 45mm Cutting hole diameter 70mm Features: 1.This dual metal hole opener for the M42 material, use electron beam welding, and then through the high temperature quenching, the tooth is sharp and durable, not easy to break and smooth drilling. 2.Good for: aluminum, steel, casting materials, wood, plastic materials, gypsum board, stainless steel, etc. Note: 1.Hole saw cutter before in use, be sure to grasp reasonable, choice, control, tachometer and continuously added to the cooling fluid, in order to prevent edge cracking, such as high-speed gun drill used in the operation should control switch, so opening and closing to minimize its speed, widely used in conjunction with various types of drill hole drilling on the bench. 2.Opening iron than 5mm, the first open about 1mm deep, and then locate the drill along kerf through a hole drilled through it easier to discharge iron filings. 3.Teeth stay sharper and make smoother cuts. Package Included: 1 x Hole Saw More Details: