Terminator Hi-Roc Straight Flute Sub-Micron Carbide Drill Bits. Drill bits for hardened steel and abrasive materials in the 42-65 Rockwell “C” range. Fantastic for stainless steel and heat-treated alloys such as nickel and chrome alloys, steel weldments, titanium and high temperature alloys as well as stainless steel weldments. 140 degree split point. Superior oxidation resistance provides unparalleled performance in high temperature machining. .

Today, we're delving into the rotation style of spiral router bits - the Up-cut, Down-cut, and Compression router bits. Understanding which style to use can make a huge difference in the quality of your projects.