PROXXON BSG 220 钻头磨尖机
The from is a drill sharpener. The use of this sharpener is quite simple and even allows novices to sharpen drill bits to DIN 118° HSS, CrV and tungsten bits of 3mm to 13mm diameter professionally. The sharpening operation is controlled exactly by means of movable carriage. This moves from left to right and also rotates drill bit on its own axis. This operation yields correct relief angle. The carriage is fitted with feed screw for fine feed. A dressing stone ensuring a sharp cutting surface is also fitted.