Countersink Drills products from UNION RESOURCES&ENGINEERING CO.,LTD..

This 4-piece countersink drill bit set is designed for creating clean, burr-free countersunk holes in a variety of materials, including wood, plastic, and soft metals. The set includes four different sized bits to accommodate screw sizes ranging from 2mm to 20mm.

This high-speed steel countersink drill bit creates pilot holes and countersinks in a single operation. It features a tapered drill bit with adjustable countersink attachment for different screw sizes and depths.