Article: СМ-6 Ǿ151

    Crown bit CM-5 f 151

    Price from $ 16.83

    weight: 1.2 kg.

    Description

    Used when drilling abrasive, monolithic rocks VI-VIII categories. The diameter of the core pipes 146 mm
    Crown СМ-5 f 151 
    designed for rotary and rotary-percussion core drilling with bottomhole cleaning washing liquid in such rocks as limestone, clay and sandy shale. Structurally bit is a cylinder which at one end for threaded connection to the coring pipe, and at the other end of the tube attached carbide inserts.

    Body material crown - Steel 20
    Material carbide - VK8
    Thread length - 30 mm