Countersink bit set, aluminum countersink bit with adjustable depth stop and 6.35 mm (1/4") hexagonal shank, HSS-M2 countersink bit for woodworking

General Description This chamfer drill bit set is designed for woodworking, joinery, and DIY projects. It includes four different sizes: 2.8 x 8 mm, 3.2 x 8 mm, 3.5 x 10 mm, and 4 x 10 mm, all with 3/8" countersunk holes at 82° and 1/4" hex shanks. Thanks to an aluminum stop ring and integrated bearing, drilling stops instantly upon contact with the wood, preventing over-drilling and ensuring a consistent depth. The helical flute design allows for rapid chip removal, preventing debris buildup and blockages for smoother drilling. Technical Specifications Material: HSS-M2 Drill Bit Sizes: 2.8 x 8 mm, 3.2 x 8 mm, 3.5 x 10 mm, 4 x 10 mm Shank Type: 1/4" Hex Countersunk Hole Angle: 82° Installation Easily adjust the drilling depth using the included hex key. Application Ideal for woodworking, including natural wood, solid wood panels, particleboard, MDF, plywood, and fiberboard. For optimal performance, use a slow speed of approximately 200 rpm. Not suitable for drilling metal or sheet steel.