High Speed Steel Extended Twist Drill Bits 7.5mm Drill Dia. 250mm Length 2 Pcs 5 Meter 225401JK40D

225401JK40D

Thread Pitch: 13 TPI Coarse Thread UNC

and good impact resistance

The embroidery pen is made of stainless steel punch needle

Gear Box No-load Speed: 3RPM

High Speed Steel Extended Twist Drill Bits 7.5mm Drill Dia. 250mm Length 2 Pcs 5 Meter 225401JK40DDescription 1. Made of high speed steel. HSS(High Speed Steel) enables the drill body harder and can keep a longer drilling life. 2. With the twisted design, it can improve cutting accuracy by centering the tip. It can avoid displacement of the drill bit during work, and at the same time remove debris and particles faster and easier. 3. Suitable for processing non ferrous metals, such as copper and aluminum, and also suitable for hard plastics. When