Dasco Pro 431-0 Scratch Awl, 3-1/2 in L Shank, 3/4 in Dia Shank, Steel Handle

A handy, economical tool for both the contractor and do-it-yourselfers, the Dasco Pro giant circle beam compass lets you scribe accurate circles up to 10 ft in Dia or larger using a 1/2 in OD dowel rod, PVC or rigid metal tubing as the beam.