6-Piece Countersink Drill Bit Set, Woodworking Countersink Bits with Depth Stop and 1/4" Hex Shank, HSS-M2, Countersunk Head Drill Bits for Woodworking

CONTENTS: This countersink bit set 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" 82° countersinks and 1/4" hex shanks), a brass sleeve, and an Allen key. DURABLE MATERIAL: This wood countersink bit is made of a very hard, wear-resistant alloy. Its 4-flute design allows for fast and accurate drilling of clean, smooth countersinks. ADJUSTABLE DEPTH: The wood countersink bits feature an adjustable depth stop for precise drilling depth control. The included key allows for easy depth adjustment with clear marking lines. The plastic collet reduces scratches. QUICK CHIP REMOVAL: The helical flute design of these chamfering bits efficiently removes wood chips, preventing debris buildup and clearing obstructions for smoother drilling. Ideal for woodworking, cabinetmaking, and DIY projects. WIDE APPLICATIONS: These replaceable countersink bits are designed for woodworking, including natural wood, solid wood panels, particleboard, MDF, plywood, and fiberboard. For optimal performance and clean edges, we recommend a slow speed of approximately 200 RPM. Note: Not suitable for drilling metal or sheet steel.