Spiral percussion drill for wood BPS-10x620

Drill spiral wood BPS made of carbon steel screw their part is in the form of drills with spiral Lewis, the cutting part is made on the basis prochnogo drill shank terminated by a ring to insert the knob. The drill is designed for drilling holes in soft materials by hand, using the knob in the form of a rod. The diameter of the working part 10 mm length are drilled through holes 590мм, the total length of the drill 620mm.