Set of 10 serrated drill bits with 6.35 mm (1/4 inch) hexagonal shank, carbide tips from 4 to 12 mm, for masonry, concrete, tile, glass, plastic and wood.

Features:1.10-Piece Set: The set includes one 5/32-inch (4 mm) drill bit, one 3/16-inch (5 mm) drill bit, three 1/4-inch (6 mm) drill bits, three 5/16-inch (8 mm) drill bits, one 3/8-inch (10 mm) drill bit, and one 1/2-inch (12 mm) drill bit to meet various cutting needs.
2. Hexagonal Shank: The serrated drill bit is equipped with a 1/4" hexagonal shank, compatible with a variety of power tools, such as electric hand drills and cordless drills. It supports quick-change chuck locking for improved work efficiency.
3.Carbide Tip: The masonry drill bit is made from premium carbide material and professionally treated with rust prevention, ensuring its durability.The head has undergone a special strengthening treatment to effectively prevent cracking.
4.Precise cutting: The drill bit features a unique cross-angle grinding tip design, reducing slippage and improving cutting stability. It is specially designed for tiles and other hard materials, ensuring a smoother and more efficient cut.
5.Wide application: The drill bit is suitable for glass, ceramics, tiles, mirrors, pots, wood, porcelain, brick walls, marble, etc.Keep the drill bit vertical during use. It is recommended to use cooling water to reduce the temperature, but avoid using it on extremely hard tiles.
Specifications:Item Type: Serrated Drill Bit
Material: Carbide
Shank Diameter: 1/4 inch (6.35 mm) Hex Shank
Drill Bit Specifications: 4 mm, 5 mm, 6 mm, 6 mm, 6 mm, 8 mm, 8 mm, 8 mm, 10 mm, 12 mm (5/32 in, 3/16 in, 1/4 in, 1/4 in, 1/4", 5/16", 5/16", 5/16", 3/8", 1/2")
Drill Bit Length: Approx.98 mm / 3.86 inches (for 4-6 mm specifications), 115 mm / 4.53 inches (for 8-12 mm specifications)

Package List:Package includes 10 x serrated drill bits
1 x storage box
Note:Size may vary slightly.