Testing the Bulls-I Door Coring Jig

    June 8, 2023
    Tool makes drilling for electronic access control installations smooth and easy

    Drilling a door to run wires for electronic access control can be a delicate process. Using the Bulls-I door coring tool (Photo 1) makes the job easier and more accurate.

    For a text version, read the article here.

    About the Author

    Wayne Winton

    Wayne Winton is the owner of Tri-County Locksmith Services, located in Glenwood Springs, Colorado.