







·Specifications. Woodworking countersink drill bit set for wood screws without changing bits. Drilling length can be adjusted for various length screws simply by loosening and tightening the setscrew.
·Parameters. 8mm round shank countersink drill bit set included 5 kinds of sizes: 2.8 x 8mm, 3.0 x 8mm, 3.2 x 8mm, 3.5 x 8mm, 4.0 x 8mm bits, very suitable for drilling holes, opening range is 2.8-4mm, and adjustable cutting height: 2.5-10.5mm.
·Suitable for drilling machines with chucks such as electric drills, hand drills, bench drills, etc. Provides precise, clean pilot holes in compressed board, plastic, MDF, pine and more. Perfect for woodworkers, DIY enthusiasts, home repairs and more.