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This bit is essentially a plunge-cutting straight with a shank-mounted ball bearing pilot. It is a versatile bit, useful for template/pattern routing of parts, joints, and internal cuts, and can be used in handheld and table-mounted routers. The template is attached to the work-piece, and the pilot bearing rides along its edge as the cutting edges rout the work-piece, forming an exact duplicate of the template. With a handheld router, the pattern is on top of the work; with a table-mounted router, the pattern is underneath the work.

1/4" & 1/2" Shank
2 Flute
Upper Ball Bearing Guide
Professional Quality Carbide-Tipped