The role of the magnetic drill Hollow Bit Cente

Magnetic Drill Hollow Bit Center Pin, 

Magnetic Drill Hollow Bit Center Pin also known as thimble, Positioning Pin, positioning Rod, etc, the main role of hollow drill in drilling faster and more accurate positioning, at the same time, the core of the hollow bit is pushed out while drilling, and the cooling lubricant is used to prevent the bit from being burned! 

The core needle of the magnetic drill hollow drill is the center of the hollow drill. Without it, the iron filings will be blocked when the hollow drill is drilled, and the drill is easy to break, therefore, hollow bit | magnetic drill | steel drill center needle thimble hollow bit drilling is one of the indispensable accessories