Qualtech

2-7/8" X 1/2" Pilot Hole HSS Straight Shank Counterbore. Counterboring is the enlargement of a portion of a hole that has previously been formed. If the counterbored portion is shallow (1/8" or...

21/32" X 3/16" Pilot Hole HSS Straight Shank Counterbore. Counterboring is the enlargement of a portion of a hole that has previously been formed. If the counterbored portion is shallow (1/8" or...

21/64" X 3/32" Pilot Hole HSS Straight Shank Counterbore. Counterboring is the enlargement of a portion of a hole that has previously been formed. If the counterbored portion is shallow (1/8" or...

23/32" X 1/4" Pilot Hole HSS Straight Shank Counterbore. Counterboring is the enlargement of a portion of a hole that has previously been formed. If the counterbored portion is shallow (1/8" or...

23/64" X 3/32" Pilot Hole HSS Straight Shank Counterbore. Counterboring is the enlargement of a portion of a hole that has previously been formed. If the counterbored portion is shallow (1/8" or...

25/32" X 1/4" Pilot Hole HSS Straight Shank Counterbore. Counterboring is the enlargement of a portion of a hole that has previously been formed. If the counterbored portion is shallow (1/8" or...

25/64" X 5/32" Pilot Hole HSS Straight Shank Counterbore. Counterboring is the enlargement of a portion of a hole that has previously been formed. If the counterbored portion is shallow (1/8" or...

27/32" X 1/4" Pilot Hole HSS Straight Shank Counterbore. Counterboring is the enlargement of a portion of a hole that has previously been formed. If the counterbored portion is shallow (1/8" or...

27/64" X 5/32" Pilot Hole HSS Straight Shank Counterbore. Counterboring is the enlargement of a portion of a hole that has previously been formed. If the counterbored portion is shallow (1/8" or...

29/32" X 1/4" Pilot Hole HSS Straight Shank Counterbore. Counterboring is the enlargement of a portion of a hole that has previously been formed. If the counterbored portion is shallow (1/8" or...

29/64" X 5/32" Pilot Hole HSS Straight Shank Counterbore. Counterboring is the enlargement of a portion of a hole that has previously been formed. If the counterbored portion is shallow (1/8" or...

3" X 1/2" Pilot Hole HSS Straight Shank Counterbore. Counterboring is the enlargement of a portion of a hole that has previously been formed. If the counterbored portion is shallow (1/8" or less),...