Hardmetal burrs used in pneumatic or electric tools, speed is 6000-40000 rpm, must clamp tool.
From right to left direction of cutting uniform movement, not like the use of wheel for reciprocating cutting
Be careful not to overexert (pressure is generally not more than 4 kg)
Tungsten steel Solid Carbide Burrs for DIY enthusiast or hobby and craft fan, and give your rotary tool even more functionality with this set of burrs
Reaches a Rockwell hardness of HRC 70