This is the cutter needed to cut the slot for the slide rails on a 1911 Colt or the Sig P-228 style frame. The width of this cutter has been precision ground to 0.118 inch. This is the perfect tool for this operation. The slide rail measurement of 0.118 is not a nominal size in metric or standard. With this cutter the slide can be cut in one operation instead of making two passes with a smaller cutter thus eliminating the possibility of error. 1/2 Inch shank.
