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    Thread ST58

    Top Hammer Drilling Tools for Bench Drilling

    benchdrill

    Bit Diameter: 89mm-102mm

    Button bit design: Flat face, drop center, normal and retrac body.

    Tungsten carbide (Buttons): Spherical, ballistic and conical.

    Applications: Bench, production

    We have different designs for various rock formations, and a longer service life to decrease use costs for users.

    Button bit (ST58) D Flushing hole (mm) Buttons (mm) Angle Class Part no.
    mm in Front Gauge Front Gauge
    89

    102
    3 1/2

    4
    4×10

    4×11


    6×12

    6×12
    8×14

    8×14
    35°

    35°
    M

    M
    3089ST5814D

    30102ST5814D
    89

    102
    3 1/2

    4
    2×14

    2×15


    6×12

    6×13
    8×14

    8×14
    35°

    35°
    H

    H
    3089ST5814

    30102ST5814
    89

    102
    3 1/2

    4
    2×11

    2×12
    2×9

    2×9
    6×12

    6×12
    8×14

    8×14
    35°

    35°
    H

    H
    3089ST58F14R

    30102ST58F14R
    89

    102
    3 1/2

    4
    4×10

    4×11


    6×12

    6×12
    8×14

    8×14
    35°

    35°
    M

    M
    3089ST5814DR

    30102ST5814DR
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