🌺IMPROVED EFFICIENCY: high quality & hardness YG6X tungsten steel alloy head features reduced resistance and better precision and is more wear resistant. Carbide Tipped Drill Bits Are Built For Longevity and Will Stay Sharper Much Longer Than You're Typical Steel Drill Bit. 🌺MULTI-MATERIAL DRILL BITS:Easily Drills through Ceramic Tile, Glass, Cinderblock, Hard Plastic, Cement, Concrete, Mirrors, Windows, Travertine, Brick, Wood, and So Much More! 🌺SPECIAL TIP DESIGN: A tungsten carbide material hardens the tips. Such a combination reinforces the head against cracking and in turn, makes the pieces more robust. This helps to prolong the life of the bits compared other alternatives in the market. 🌺QUICK CHANGE: 1/4 inch Hex Shank fits into all power tools more easily and securely, especially for locking into quick change chuck. PACKAGE INCLUDES:10Pcs masonry drill bit with 6 different sizes 2pc 4mm (5/32”)，2pc 3/16” (5mm), 2pc 1/4” (6mm), 2pc 5/16” (8mm); 1pc 3/8” (10mm) and 1pc 1/2”(12mm) for various purposes, to meet the daily needs of your work. What's so special about this 10 piece set 4MM- 12MM concrete Drill Bit? This Things you must know.
These drill bits can be used in charging drill, hand drill, bench drill etc. But NOT fit for impact drills;
Bits are well assorted in a portable plastic case for easy storage, each contained in an individual section keeping the bits from beating each other up.
Widely Used ---- Masonry drill bit can easily penetrate various materials like glass, tile, ceramic, brick, light concrete, wood, plastic, cement, marble, wall, mirror, block, stone, porcelain floor, granite, cinderblock, window, travertine etc.
Efficient Design ---- 1/4 hex handle is designed for preventing slipping and allows drill bit to be held tightly and stably in power drill. U type slot design makes perfect chip removal ability with overall

Specifications:
Material: Carbid

Bit type: tile & Ceramic drill

Package included:
2pcs with 4mm Drill Diameter & 6.35 mm shank Diameter
2pcs with 5mm Drill Diameter & 6.35 mm shank Diameter
2pcs with 6mm Drill Diameter & 6.35 mm shank Diameter
2pcs with 8 mm Drill Diameter & 6.35mm shank Diameter
1pcs with 10 mm Drill Diameter & 6.35mm shank Diameter
1pcs with 12mm Drill Diameter & 6.35mm shank Diameter


ATTENTION:
- Keep the drill and bit at a VERTICAL degree and use WATER or COOLANT during drilling.
- Do not choose impact mode of drills or hammers when use these masonry drill bits.
- The drilling speed should not be so fast, choose a slow speed at the beginning of drilling.