Drill Pilot Hole With
Pilot Drill or Conventional
Twist Drill.

Insert Blade For
Drilling Without
Auxiliary Pilot.

Insert Blade & Attach
Auxiliary Pilot For
Larger Diameter Hole.

Select the appropriate piloted holder and blade for the screw size needed.

STEP 2

Insert the blade into the piloted holder and tighten the set screw.

B.) Backward Counterboring - Use in a reverse spindle counter clockwise direction.