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 12 results
-
32408 – 1/8″ x 3/8″ 3-Flute Flat Bottom Counterbore with TiN coated twist drill
$ 16.26 Add to cart -
33208 – 1/8″ x 1/2″ 3-Flute Flat Bottom Counterbore with TiN coated twist drill
$ 16.26 Add to cart -
33212 – 3/16″ x 1/2″ 3-Flute Flat Bottom Counterbore with TiN coated twist drill
$ 17.31 Add to cart -
34012 – 3/16″ x 5/8″ 3-Flute Flat Bottom Counterbore with TiN coated twist drill
$ 27.29 Add to cart -
34812 – 3/16″ x 3/4″ 3-Flute Flat Bottom Counterbore with TiN coated twist drill
$ 32.54 Add to cart -
34822 – 11/32″ x 3/4″ 3-Flute Flat Bottom Counterbore with TiN coated twist drill
$ 34.64 Add to cart -
34824 – 3/8″ x 3/4″ 3-Flute Flat Bottom Counterbore with TiN coated twist drill
$ 35.69 Add to cart -
36424 – 3/8″ x 1″ 3-Flute Flat Bottom Counterbore with TiN coated twist drill
$ 37.79 Add to cart -
39108 – 1/8″ Replacement Twist Drill for Flat-Bottom Counterbores
$ 8.26 Add to cart -
39112 – 3/16″ Replacement Twist Drill for Flat-Bottom Counterbores
$ 8.81 Add to cart -
39122 – 11/32″ Replacement Twist Drill for Flat-Bottom Counterbores
$ 11.57 Add to cart -
39124 – 3/8″ Replacement Twist Drill for Flat-Bottom Counterbores
$ 11.57 Add to cart
Showing all 12 results