Material: Alloy Sheet Total Length: 6.3 inches (160 mm), Working Length: 4.3 inches (110 mm) (Compatible with impact drills)
Perfect for stone drill set / precision ground auger and stonework. Covers all common mounting sizes. This set is perfect for use on the field. Suitable for brick, block, stone, and light concrete * High performance shaft for maximum durability Chip design improves drill penetration power Ideal for electric hammer * Deep double grooves for optimal dust and dirt removal thanks to the rounded spiral shape. * Suitable for drilling holes in concrete, ceramic tile, stone, wood, metal, aluminum, plastic, concrete and multi-layer materials.