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Counterbores

Counterbores

Sometimes called spotfacers, use counterbores to create contoured holes for a precise fit when seating ports, fasteners, or other parts in the hole. The pilot (tip) of the counterbore is the same diameter as the existing hole and keeps the counterbore accurately centered during drilling.

Cap Screw Counterbores

Create a cavity at the top of an existing hole to seat the head of a socket head cap screw or shoulder screw so it is hidden or sits flush with the surface.

Inch

Cobalt

Metric

Cobalt

Porting Counterbores

Also known as porting tools, these counterbores will machine contoured ports into a workpiece. They are designed with all the necessary features and dimensions of the port built into the tool except the depth, which is controlled by the machine.

Inch

Carbide Tipped

UNF Thread Standard

UNJ Thread Standard

Cap Screw Counterbore Sets

Have the right tools on hand to create counterbored holes for a range of standard cap screw sizes. These sets contain multiple counterbores in different sizes.

Inch

Cobalt

Metric

Cobalt