Counterbore

High speed steel, 1960 series. Straight shank.

High speed steel, straight shank. (Seven-piece metric set shown.)

For drilling and counterboring cap screw clearance holes. An essential item for every tool room. One tool does two jobs in a single pass. They can be resharpened repeatedly and easily modified for any special step length. Note: Less than jobber length.

High speed steel. Straight shank size is 1/4 inch; over 1 inch diameter, shanks are 1/2.

Industry grade C2, carbide tipped. Spiral flute, straight shank.

Set consists of 13 counterbores 1/4 to 1 inch x 16ths, fitted case and 26 pilots in the following sizes:* 1/8, 5/32, 3/16 , 1/4 inch with 3/32 shanks* 3/16, 7/32, 1/4, 9/32, 5/16 inch with 5/32 shanks* 1/4, 5/16, 3/8, 7/16, 1/2 inch with 3/16, shanks* 5/16, 3/8, 7/16, 1/2, 9/16, 5/8 inch with 1/4…

For drilling and counterboring cap screw clearance holes. Includes stand. Can be sharpened repeatedly and easily modified for any special step length. Includes stand.

No grinding. Higher cutting rates than high speed steel. No clamps to impede chip flow. C5/C6 carbide inserts and TORX wrench included each each set. (Three-piece set pictured.)

High speed steel, jobber length. For drilling and counterboring cap screw clearance holes. Essential item for every tool room. One tool does two jobs in a single pass. Can be sharpened repeatedly and easily modified for any special step length.

With interchangeable parts. Straight shank. Includes case.Set consists of:* 13 counterbores with 3/32-inch shank in sizes 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 15/16 and 1 inch* Four pilots with 5/32-inch shank in sizes 1/8, 5/32, 3/16, 1/4 inch* 10 pilots with 3/16-inch…

High speed steel. Includes wood box.

High speed steel. Interchangeable pilot type.