sold Drill Holes For Pillar Bedding Without A JigGet accurate, correctly aligned pillar bedding holes in less time with your electric hand drill. Piloted forstner bit cuts straight and clean; opens up the existing stock screw holes to accept the most commonly used, 9/16" diameter bedding pillars. SPECS: Steel, blue. Bit - 5" (12cm) long, 9/16" (14mm) diameter, ½" (12mm) diameter shank. Pilot - 1½" (3.8cm) long, .312" (7.9mm) dia. price reduced 75.00 tyd. used once.