INSTEAD OF A DRILL HAMMER

 

INSTEAD OF A DRILL HAMMERWho suffered, making holes in concrete slab, knows that the best assistant in this case — a power drill. Well, if it does not exist?
You will rescue two hammer and carbide drill bit d 4 and 7 mm. First, work a smaller drill bit and lightly hitting it with a hammer and turning a bit after each stroke. Breaking to a depth of 5-10 mm, model drill more and clean the resulting hole. The cycle is then repeated in 20 minutes manages to punch a hole to a depth of 40 mm.

Recommend to read

  • SECURITY ALARMSECURITY ALARM
    This is a safety alarm device (SLD) is designed to automatically alarm (electrozone) in the case of penetration of unauthorized persons in the protected object — an apartment, dacha,...
  • THE SEVEN-SEATER “MOSQUITO”THE SEVEN-SEATER “MOSQUITO”
    The car, which will be discussed, began to make acquaintance of mine in the late 1980s, when the automotive abundance was not far off, but we did not yet know. However, as soon as he...