What is a Flat Head Drill Used for?
A flat drill is a woodworking tool. Flat drill bits are made of a very hard alloy. The cutting part of the woodworking flat drill is ground into a flat body, and the main cutting edge is ground to sharp angles and relief angles to form a cross edge; the secondary cutting edge is ground to grind the relief angle and secondary deflection angle and control the drilling diameter. Flat drill bits have small rake angles, no spiral grooves, and difficult chip removal, but they are simple to manufacture and low in cost. It is widely used for processing small holes with diameter less than 1mm. Due to the great improvement in structure and the above-mentioned advantages, flat drilling is also used when processing holes with a diameter greater than 35mm on automatic line and CNC machine tools.