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    TECHNICAL SAFETY BULLETINS

    TSB #

    2101

    2102

    2103

    2104

    2201

    SUBJECT

    HOSE SAFETY RESTRAINTS -  INSTALLATION

    WELD PROCEDURE - CLUSTER DRILLS

    SUPERNUT JACKBOLTS - TORQUE

    DUST COVER BOLTS - TORQUE

    CLUSTER DRILL SAFETY TIE-DOWN LOCATIONS

    DATE

    8/17/21

    12/20/21

    12/20/21

    12/21/21

    1/21/21

    © 2019 by Keystone Drill, Inc. Designed by PrecisionBS.com

    Corporate Headquarters

    184 Alisa Street

    Somerset, PA 15501

    800-221-0586

    Branch Locations

    12655 Route 536
    Punxsutawney, PA 15767
    800-626-2298

    315 Zane Grey Road
    Norwich, OH 43767
    800-628-4135

    @2019 Keystone Drill, Inc. Designed by Precision Business Solutions