Countersink Drill Bit Set, 12-Piece Adjustable 82° Two-Flute HSS Kit with Five Sizes and Extension - EZARC

A countersink drill bit set combines pilot drilling, countersinking and counterboring to help seat wood screws cleanly in one workflow. This EZARC 12-piece kit uses five adjustable two-flute countersinks in screw sizes #4, #6, #8, #10 and #12. The dual cutting edges and 82-degree angle are designed to reduce chatter and leave a smooth recess in softwood or hardwood.

Titanium-coated high-speed steel provides wear resistance, while the stepped chamfer blades limit cutting resistance. The kit also includes five replaceable pilot bits, a 60mm magnetic extension holder, an Allen wrench and a storage case. The 1/4-inch hex shanks fit compatible hand drills, bench drills, electric drills and impact drills. Adjust the pilot depth for the board thickness, secure the workpiece and avoid extended continuous use in hardwood.

Specifications

• Brand: EZARC
• Model: 80331012
• Product: Adjustable countersink drill bit set
• Set quantity: 12 pieces
• Countersink bits: 5
• Screw sizes: #4 #6 #8 #10 and #12
• Replaceable pilot bits: 5
• Cutting design: Two flute
• Countersink angle: 82 degrees
• Material: High-speed steel
• Finish: Titanium coated
• Shank: 1/4-inch hex
• Extension holder: 60mm magnetic
• Included: Allen wrench and storage case
• Use: Softwood and hardwood
• Other variants: 14-piece self-centering and 22-piece combination sets