ITEM NAME:8pcs SDS PLUS Electric Hammer Drill Bits for Masonry Concrete Rock Stone #JT1 Product Description Description: 8pcs SDS PLUS Electric Hammer Drill Bits 5/6/8/10/12mm 110mm/160mm/210mm for Masonry Concrete Rock Stone Features: Chrome steel drill body, U-shaped groove, fast chip removal Uses: dedicated to shovel walls, and suitable for drilling of ordinary stones, concrete, brick walls, etc. Specifications: Material: YG8C alloy, 40Cr steel Type: SDS PLUS electric hammer drill bit (5*110mm, 6*110mm, 8*110mm, 6*160mm 8*160mm, 10*160mm, 12*160mm, 8*210mm) Equipment: for electric hammer drill Notes: 1. There may be slight size deviations due to manual measurement, different measuring methods and tools. 2. The picture may not show the actual color of the item because of different photographing light, angle and display monitor. Included: 8 X Electric Hammer Drill Bits.Uses: dedicated to shovel walls, and suitable for drilling of ordinary stones, concrete, brick walls, etc. Material: YG8C alloy, 40Cr steel. If item is defective after 3 months, you can still send it back to us.