SD-3 Flat Bottom Counterbores
SD-3 Flat Bottom Counterbores are used to drill the pilot hole or clearance hole and counterbore a flat bottomed hole in one step. Great for lag screws, lag bolts, washer head screws, T-nuts & more.
Showing all 5 results
-
32408 – 1/8″ x 3/8″ 3-Flute Flat Bottom Counterbore with TiN coated twist drill
$ 15.49 Add to cart -
33208 – 1/8″ x 1/2″ 3-Flute Flat Bottom Counterbore with TiN coated twist drill
$ 15.49 Add to cart -
33212 – 3/16″ x 1/2″ 3-Flute Flat Bottom Counterbore with TiN coated twist drill
$ 16.49 Add to cart -
34012 – 3/16″ x 5/8″ 3-Flute Flat Bottom Counterbore with TiN coated twist drill
$ 25.99 Add to cart -
34020 – 5/16″ x 5/8″ 3-Flute Flat Bottom Counterbore with TiN coated twist drill
$ 27.99 Read more
Showing all 5 results