High Speed Steel Extended Twist Drill Bits 4mm Drill Dia 160mm Length 6Pcs M7x15mm You no longer have to

You no longer have to worry about the hard disk or laptop case loosening

Measures current range of DC 0-10V with accuracy of Class 2

Round Shank Diameter: 4mm / 0

Please select the right size of the product according to your need before purchasing

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High Speed Steel Extended Twist Drill Bits 4mm Drill Dia 160mm Length 6Pcs M7x15mm You no longer have toDescription 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