DRILL FOR ANY WALL

DRILL BIT FOR ANY WALLA great tool for making holes in concrete, ceramics, brick is obtained from a carbide cutting plate lathe cutter, driven on the grinding wheel to the shape of a disk with a tapered cutting edge. Mandrel for mounting in the Chuck is machined from steel rod Ø 12 mm. Disc is mounted on the axial groove with the screw M5.
 
V. KNYAZEV, Leningrad

Recommend to read

  • ROTOR-DIGGERROTOR-DIGGER
    Conveyor under the open sky could rightly be called a complex of the most diverse and unusual cars, created in our country in recent years for laying pipelines in any geographical...
  • CONVENIENT LAMPCONVENIENT LAMP
    Alexander Konochkin — student of the physical-technical faculty of Tomsk state University. The choice of the future profession is not accidental — since childhood Sasha enjoys improvised...