17/32 X 1 12,000-Series Annular Cutter - Stack Cut. Hougen 12,000-Series Tap Drill, 1 DOC, For 5/8-11 Thread. Stack Cut tooth geometry. Hougen 12,000-Series Annular Cutter. Made with stack-cut geometry for cutting thru two or more pieces of steel at one time. Cuts holes faster, more accurate and cleaner than competitive tools. Unique Hougen features provide the best performance in the widest range of materials. 3/4 two flat shank. Made in USA.
