DeWALT 1/2" x 4" Screw-Bolt+ Screw Anchors, Hex Head, Zinc Plated E-Z Spikes/Menders/Bases It accepts collets ranging from

It accepts collets ranging from 1/8" to 1"

High precision spindle bearings - reduce runout and vibration

allowing the roll to lift so finished cylinders and cones can be easily extracted

the full-carbide head resists heat and prevents breakage for maximum life and productivity

DeWALT 1/2" x 4" Screw-Bolt+ Screw Anchors, Hex Head, Zinc Plated E-Z Spikes/Menders/Bases It accepts collets ranging fromPowers Fasteners PFM1411420 1 2" x 4" High Performance Concrete Anchor Screw The Screw Bolt+ High Performance Screw Anchor is a one piece, heavy duty screw anchor with a finished hex head or flat head (countersunk). Suitable base materials include normal weight concrete, sand lightweight concrete, concrete over steel deck, concrete masonry and solid clay brick. It is simple to install, easy to identify and fully removable. The patented thread design,