5Pcs/Set 1/4 Hex Shank Counter Drill Bit Tool Set Screw Hole Size Countersink Drilling Bits

• Superior Performance: High-speed steel has superior cutting force and durability compared to ordinary drills

• More Precision: Elimination of chatter and vibration ensures smooth operation for clean, accurate, and burr-free cuts

• Standard: Adjustable 1/4" hex shank for quick change

• Fast Chip Evacuation: Faster sawdust discharge and you'll get a nice smooth finish on any hard substance

• Versatile: Countersunk bits for wood, plastic, soft metals, fiberboard, plywood, aluminum plate, etc.

Specification:

• Drill bit material: high speed steel

• Sizes: #5, #6, #8, #10, #12

• Type: 1/4" hex shank

• Suitable for: Insulation board, wood board, plastic, soft metal, fiber, Board, particleboard, plywood, aluminum plate, etc.