5-Piece Chamfering Drill Bit Set, 1/4" Adjustable Hex Shank Quick Change Milling Cutter Set, Replaceable Milling Bits with Hex Key, Woodworking Drill Bit Set

Set of 5 Countersink Bits with Adjustable 1/4" Hex Shank and Quick Change

1. Made of premium high-speed steel (HSS) for extended life.
2. Capable of drilling a pilot hole and countersinking for the screw head or creating a counterbore for the connector in one step.
3. Precision-machined, quick-change chucks compatible with hammer drills and other power tools designed to accept a 1/4" hex shank.

82° Thread Standard

• The 82° countersink angle matches the head angle of most screws you'll encounter. This set of bits allows all surfaces of the screw head to make contact with the wood simultaneously and with equal force. You won't need to forcibly extend the cutter by overtightening the screw.

Doubled Tool Life

• 5 freely replaceable, depth-adjustable, and removable milling bits for easy cleaning and replacement. Worn or dull milling bits can be easily replaced.
• An L-shaped wrench.

Hex head screw

• Better drill bit retention to prevent loosening or falling out.