High Speed Steel Extended Twist Drill Bits 7.5mm Drill Dia 300mm Length 2Pcs Solenoid Valves Laser marking makes the size

Laser marking makes the size more clear

Suitable for the cooling fan of computer or other appliances

Designed for normal sized handheld mics

Its surface can effectively block sunlight irradiation

Wide range for working temperature and pressure

High Speed Steel Extended Twist Drill Bits 7.5mm Drill Dia 300mm Length 2Pcs Solenoid Valves Laser marking makes the sizeDescription 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