This counterbore set is made of cobalt. It is designed for use with general purpose. This counterbore set has a bright (uncoated) finish, and has fractional inch measurements. Plus it has three flutes.
Technical Specs
ItemCounterbore Set
Number of Pieces7
Material - MachiningCobalt
For Screw Size#6, #8, #10, 1/4 in, 5/16 in, 3/8 in, 1/2 in
Number of Flutes3
Max. Size Counterbore in Set1/2 in
Primary Material ApplicationGeneral Purpose
Measurement SystemFractional Inch
Counterbore TypeStandard
Finish - MachiningBright (Uncoated)
For Screw TypeSocket Head Cap Screw
Min. Size Counterbore in Set#6
Sizes Included#6, #8, #10, 1/4 in, 5/16 in, 3/8 in, 1/2 in