Whiteside 13-640 Helix Mortise Bit w/ Downshear 41/64"CD, 5/8"CL

Whiteside 13-640 Helix Mortise Bit w/ Downshear 41/64"CD, 5/8"CL works wonderfully with Natural woods, composite woods, hard plastics, achieving great results at 14,000-16,000 (max 24,000). Highlights: These Mortise heads are designed to screw down onto a Helix Mortise Arbor (Part #HMA-1/4 or #HMA-1/2) for easy transition from one cutting head to the next. The Mortise head is only available with a downshear cutter.