Amana tool 57172 Solid Carbide (Brazed to Steel Shank) Spiral Pattern/Plunge Compression 1/2 D x 1 CH x 1/4 Inch SHK w/ Upper Bal Bearing Router Bit

Solid Carbide (Brazed to Steel Shank) • 2 Flute with Upper Ball Bearing Spiral Flush Trim Compression Lower Bearing, item #57173 and #57174 Used for trimming laminate work or for template and pattern work. For template application, the bearing follows the template, while the cutting edge trims the workpiece. With the router handheld, the template is on the bottom of the work. With table-mounted router, the template is on top. Spiral Pattern/Plunge Compression Upper Bearing, item #57172 and #57176 Plunge-cutting straight with a shank-mounted ball-bearing pilot. Useful for template/pattern routing or parts, joints, internal cuts and can be used in handheld and table-mounted routers. The template is attached to the workpiece and the pilot bearing rides along its edge as the cutting edges rout the workpiece, forming an exact duplicate of the template.