Countersink for drill

Countersink for drillEverybody knows to “hide” the head of the screw or nail, a hole must be countersunk. In a domestic environment this operation is usually large diameter drill. But it kvostik drill does not fit, and have to work in the “manual mode”. If the holes a lot, mozopi provided. To avoid them it is necessary to equip the drill very ordinary wooden handle of a file or screwdriver.

Recommend to read

  • REFRIGERATOR CARREFRIGERATOR CAR
    Two hundred years have passed since then, as it became known Seebeck effect and Peltier. The effect is to pump heat under the action of EMF (electromotive force), in other words, the...
  • SIKORSKY S-76SIKORSKY S-76
    In 1974, the firm Sikorsky started to create on the basis of a military helicopter S-70 the first commercial passenger 12-passenger helicopter. When designing new machines, great...