APT 10 PC BACKWARD COUNTERBORE SET

Uses the Same Simple Design of the Multi-Tool System!

SET INCLUDES (1 piece of each):

• Blade and pilot holder for the following screw sizes: 1/4, 5/16, 3/8, 7/16, & 1/2".
• Supplied in wood block.

Note: Blades of similar thickness may be interchanged with any pilot-holder using corresponding blade slot.

Designed to counterbore holes for standard cap screws. Used in confined areas, plus more chip clearance. Using the same piloted holder, you can forward counterbore, back counterbore, and spotface. Just choose the appropriate blade for your application.

HIGH SPEED STEEL BLADES:

• Back counterbore.
• Back spotface.
• Resharpened & modified to special diameters & unusual hole configurations.
• Worn blades can be ground to smaller diameters and reused.

Application:
Step 1: Select appropriate pilot holder & blade for screw size needed.
Step 2: Insert blade into pilot holder & tighten the set screw.A) Forward counterboring – use clockwise direction. B) Backward counterboring – use counter-clockwise direction.

APT 10 PIECE BACKWARD COUNTERBORE SET