1、Made of tungsten steel, high degree of hardness, wearable and long service life 2、5 different diameters and length of drill bit can meet your basic needs of drilling 3、Wide spiral flutes quickly remove dust and debris from the cutting area 4、Lightweight design, convenient to carry, great for builders, construction workers, etc 5、Designed for hammer drills and excellent for drilling brick, concrete, stone and ceramic tile Description: There are 4, 5, 6, 8, 10mm masonry drill bits. They have a tough tip for a long service life. Wide spiral flutes quickly remove dust and debris from the cutting area. These bits are designed for hammer drills and are excellent for drilling brick, concrete, stone and ceramic tile. Features: Made of tungsten steel, high degree of hardness, wearable and long service life. 5 different diameters and length of drill bit can meet your basic needs of drilling. Wide spiral flutes quickly remove dust and debris from the cutting area. Lightweight design, convenient to carry, great for builders, construction workers, etc. Designed for hammer drills and excellent for drilling brick, concrete, stone and ceramic tile. Specifications: Material: Tungsten steel Shank Diameter: 4, 5, 6, 8, 10mm Length: 70, 79, 98, 101, 113mm Package Size: 158 x 55mm / 6.22 x 2.16" Weight: 107g(approx.) Package Includes: 5pcs x Drill Bits Note: 1. Please allow 1-3mm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.