Amana Tool High Production Straight Plunge Router Bits - Over 1/2 Diameter Option:45477 1/2 Dia x 3 x 1/2 Inch Shank The bit forms a single

The bit forms a single bead with a square shoulder

Also see: Fitting M8440 - Squared Version

This is then additionally secured with 4 supplied construction screws

and hardboard siding with the smoothest

PVC Foam Board

Amana Tool High Production Straight Plunge Router Bits - Over 1/2 Diameter Option:45477 1/2 Dia x 3 x 1/2 Inch Shank The bit forms a singleIn choosing a straight bit for any application, always select one with the shortest cutting edges and the shortest overall length that will reach the required cut depth. Excessive length intensifies deflection and vibration, which degrade cut quality and lead to tool breakage. A single flute bit should be used where cut speed is more important than cut finish. Making one cut per revolution is faster than making two or three. Improved chip clearance is