M42 70MM Metal Hole Drill Bit Kit Carpenter HoleSaw For Wood Steel

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 and smooth drilling.
2.Good for: aluminum, steel, casting materials, wood, plastic materials, gypsum board, stainless steel, etc.

Specifications:
1.Name: Metal Hole
2.Model: 503346
3.: Yellow
4.Material: M42 High Speed Steel
5.Size: 70x45mm
6.Diameter of thread: 15mm
7. hole depth: 45mm
8. hole diameter: 70mm




Note:
1.Hole before in use, be sure to grasp reasonable, choice, control, tachometer and continuously added to the cooling , in order to prevent edge cracking, such as high-speed 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.







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