● Rotary handle is easy to grip. You can adjust a variety of angles with adjustable block for precision grinding.
■ Feature:
● Material：SKS
● Hardness：HRC58°~60°
● Cooling treatment：-185°C
● Parallelism within 0.003mm/100mm
● Squareness within 0.005mm/100mm
● Angle tol.：Within 20sec
