Article: СА-4 Ǿ151

    Crown bit CA-4 f 151

    Price from $ 18.05

    weight: 1.13 kg.

    Description

    It is used for drilling abrasive, monolithics rocks VI-VIII categories. The diameter of the core pipes 146 mm.
    Crown SA-4 f 151 designed for rotary and rotary-percussion drilling the bottom hole cleaning by cleaning liquid. Structurally, the crown is a cylinder, one end of it is threaded for connection with the core pipe, and at the other end of the pipe is fixed carbide inserts.

    Body material crowns - steel 20
    The solid alloy material - VK8