50mm HSS Hole Saw Cutter Drill Bit with Connected Rod

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.