JIN YEAR PRECISION CO., LTD.
Product Description :
Features:
1. This machine has the "CE safety authentication".
2. Operates is fast and simple.The quality is stable.
3. Point Angle 90°~135°.(Generally is suitable 118°)
4. Chisel edge grinding. Can adjusting by your demand.(Generally is suitable 0.7mm)
5. It's the first to research and development "up to down" swinging grinding way.The finished drill is sharpest, and the most durable.
Our company new researches and develops, swing the drill grinding from up to down, very sharp.
Generally rotate the drill grind left to right, it's blunt.