Serrated Eccentric Masonry Drill Bit 10pcs, Four-Edge Serrated Concrete Drill Bit for Concrete Glass Brick Cement Tile Marble Wood (1/8”-1/2”)

10-Pc Masonry Drill Bit Set: Includes sizes: 3mm, 4mm, 5mm (x2), 6mm (x2), 8mm (x2), 10mm, 12mm. Made of advanced high-cobalt alloy for superior wear resistance & extended lifespan vs. YG6X. Unique serrated design enhances chip removal for cleaner, more accurate holes in tile, glass, ceramic, brick, wood, marble & thin iron. For hard materials, use water & constant speed.

• Size Information: 10 PCS Masonry drill bit set Includes 7 different sizes: 1x1/8"(3 mm),1x5/32"(4 mm),2x3/16"(5 mm),2x1/4"(6 mm),2x5/16"(8 mm),1x3/8"(10 mm),1x1/2"(12 mm);Easily meet variety of needs
• Material: Concrete drill bit is made of high cobalt , which is more advanced than YG6X, which increases wear-resistance and extra longer life span, so that the drill bits last through multiple uses
• Accurate: The concrete drill bit adopts a unique serrated design, which greatly enhances the chip removal function; The centrifugal drill bit can provide a cleaner and more accurate hole when drilling
• Application: Tile drill bits for glass, ceramic, tile, mirror, plant pots, wood, porcelain, brick wall, marble, thin iron plate etc; When dealing with hard glass and tiles, it is recommended to add water and drill at a constant speed to achieve better results