Precision made plug makers for use on natural timber, exactly matching the holes produced by the Saw Tooth Forstners groups 1306 & 1307.
These have four to six wings to ensure a clean cut. Use a slow, constant feed rate ensuring timber is clamped to bed
Specification
D=1 3/4 inches
D=44.5 mm
OL=160.2 mm
Shank Dia=1/2 inch
Shank Length=50.8 mm
Recommended max. speed=500 rpm