Whiteside 1253 Euro Step Mortise Bit 0.500"SD, 0.630"LD

Whiteside 1253 Euro Step Mortise Bit 0.500"SD, 0.630"LD works wonderfully with Natural woods, composite woods, achieving great results at 16,000-18,000 (max 24,000). Highlights: These bits are designed to route the mortise with groove in a door edge to accept eurogroove lock hardware.