Brownells 1/4" 4-Flute Solid Carbide End Mill

The most efficient method for achieving a precise and clean cut in hardened steels is described herein. This technique is ideal for modifying 1911 slides to accommodate low-mount style rear sights. It is recommended to perform the majority of the slot cutting with a mill and complete the process using a dovetail cutter. When applied to softer metals, this approach significantly extends tool life. A 3/16 inches diameter cutter is optimal for converting Remington M-700 bolts to accept Sako-style extractors. Shank diameter is 1/4 inches, cutting length is 3/4 inches