• SB1

    Ø3/4 / 1” countersunk drilling

  • SB2

    Ø1 / 1-1/4” countersunk drilling

  • SB3

    Ø5/8” drilling

  • SB4

    Ø1/2 / 11/16” countersunk drilling

  • SB5

    Ø1/2” drilling