High Speed Steel Extended Twist Drill Bits 5mm Drill Dia. 200mm Length 4 Pcs Bar-Shaped Sealing Strips The zinc plated carbon steel

The zinc plated carbon steel material makes the hex nuts more durable to use

increasing the sharpness

otherwise the device will not be used

Suitable for the 5mm-18mm thick glass

[Keyed Different] - Unique key to specific lock

High Speed Steel Extended Twist Drill Bits 5mm Drill Dia. 200mm Length 4 Pcs Bar-Shaped Sealing Strips The zinc plated carbon steelDescription 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