Diablo Stop Bit DMAST1030 1 2 Inch x 1 11 16 Inch Depth (SDS Plus Carbide Tipped Collar Shallow Concrete Drop In Anchor Drilling) Corded Tools 1 × Slugger by Fein 1 × Slugger by Fein HSS Annular Cutter (Model 63134286041) 180° Pivoting Head: Direct light exactly where needed Brick Primary Application Focus Shallow Concrete Drop In Anchor Installation Power Tool System Compatibility Corded & Cordless SDS Plus Rotary Hammers Pro Tip: Blow out residual concrete dust from the drilled hole using a blow out bulb before inserting the drop in anchor to ensure the anchor sets completely flush with the concrete surface Drop In Concrete Anchor Drilling: Boring 1 2 inch diameter pilot holes to exact 1 11 16 inch depths for setting 3 8 inch concrete drop in anchors