Product Description：

Product Name: Bimetallic Hole Opener

Using M42 as the material, the product is made of precise electron beam welding, and then vacuum high temperature quenching. Uses: aluminum, steel, casting, wood, plastic, gypsum board, stainless steel, etc. to open holes.

1. When using the hole opener, please be sure to reasonably control, select, compare, and continuously add coolant to the tachometer to prevent the cutting edge from cracking. If it is used with a high-speed gun drill, the switch should be controlled during operation. One open and one close to reduce the speed as much as possible, and it is widely used for drilling holes on various electric drills of bench drill presses.

2. For the iron plate with a hole of 5mm or more, first open about 1mm deep, and then use a positioning drill to drill through a hole along the saw gap, which is more convenient for iron filings.

6PC set parameters: one post, one 32mm 38mm 44mm 54mm hole opener each