High Speed Steel Extended Twist Drill Bits 6.5mm Drill Dia. 300mm Length 2 Pcs 4mm X 0.5mm Packing List: 1 Set -

Packing List: 1 Set - 1 x Backdraft Damper

then pass through the screw from the back of board and thread tight to the knob

M6 thread (6mm threaded hole) and 20mm length barrel nuts

reducing wear

Large Outer Diameter: 80mm / 3

High Speed Steel Extended Twist Drill Bits 6.5mm Drill Dia. 300mm Length 2 Pcs 4mm X 0.5mm Packing List: 1 Set -Description 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