15 Pcs Countersink Drill Bit Set Tapered Drill Bits High Speed Steel Wood Plug Cutter 1/4" Hex Shank Quick Change for Woodworking with Storage Box(Yellow Box)

• Comprehensive Drill Bit Set: This kit includes 7 countersink bits (2 of No. 4 bits (7/64 inch), 2 of No. 6 (9/64 inch), 1 of No. 8 (11/64 inch), 1 of No. 10 (3/16 inch), and 1 of No. 12 (7/32 inch)), 4 plug bits (12mm/0.47 inch, 16mm/0.63 inch, 19mm/0.75 inch, 22mm/0.87 inch), 2 cross - shaped bits (PH1/PH2), 1 extension rod, and 1 hex wrench. It covers every step of woodworking from drilling to finishing.
• Easy to Use, Smooth Results: The keen cutting edges combine with the standard 82° countersink angle for precision drilling, countersinking, and chamfering in one step. They create smooth, splinter - free holes in both softwood and hardwood, ensuring a snug fit for screws without wood splitting.
• Adjustable Depth Stop Ring: Equipped with an adjustable depth stop ring, it allows you to easily set the pre - drilling depth. Each countersink hole is uniformly and accurately drilled, avoiding over - drilling or deviation. Screws sit flush, creating a professional appearance.
• High - Speed Steel Material: Made of industrial - grade high - speed steel with a nitrided surface, which significantly enhances hardness and toughness. Compared to ordinary carbon steel drill bits, the service life is doubled, and wear resistance is stronger.
• Multi - purpose: The countersink bits can be used with mainstream tools such as power drills and drill presses, and are widely used in furniture, cabinetry, and woodworking DIY projects. It is recommended to use the plug bits with a drill press for the best cutting results. Note: This set is only for drilling wood; an electric drill speed of 800 - 1000 RPM is ideal.

Parts List: 7 x Conical Drill Bit 4 x Wood Cutters 2 x Screwdriver Bits 1 x Connecting Rod 1 x Wrench Description Our woodworking drill bit set is a complete solution for wood drilling needs , blending completeness , precision and durability. It includes every tool you need from start to finish. The high speed steel construction with nitriding treatment ensures 2x longer life than regular bits , while the adjustable stop ring ensures uniform hole depths for professional results Key Feature It finishes three steps (drilling , countersinking , chamfering) in one pass , saving time and ensuring smooth , burr holes in both soft and hardwood Specification Product name: Tapered Drill Bits Material: High Speed Steel Size: Cone drill bit: # 4:86x2.78mm/3.39x7/64 inches, # 6:92x3.57mm/3.62x9/64 inches #8: 102x4.37mm/4x11/64 inches #10: 104x4.76mm/4.09x3/16 inches #12: 115x5.55mm/4.53x7/32 inch, 1/4 inch hexagonal shank connector Cork drill bit: 12mm/0.47 inches, 16mm/0.63 inches, 19mm/0.75 inches, 22mm/0.87 inches, length: 45mm/1.77 inches, 1/4 inch hexagonal shank joint Batch head: 75mm/2.95 inches, 1/4 inch hexagonal shank connector Extension rod: 60mm/2.36 inches, interface: 1/4 inch hexagonal handle, connector: 1/4 inch hexagonal handle Style(optional): Yellow Case, Green Case Notes: 1.There may be slight differences between the picture and the actual color of the commodity. We will try our best to show you the exact color. 2.Please allow slight dimension difference due to manual measurement.