160mm Bi-Metal Hole Saw for Concrete Tile, Concrete Core Drill Bits, with 220mm SDS Plus Adapter and 3 110mm Center Drill Bits (160MM) Features: 1. Hole saw set of SDS Plus shank hole saws made of carbide-tipped metal material, it has strong functions of high hardness, good toughness and durability. 2. Our core bit is equipped with ventilation holes for free ventilation of dust and chips generated during drilling, ideal for cutting clean holes in concrete. 3. The 160mm hole saw is intended for drilling blind holes and rosette plates and any other mounting procedures. Concrete Hole Saw Specifications: Material: High Quality Alloy Diameter: 160mm Thickness: 4mm SDS Plus Adapter Size: 2.5 x 22cm Center Drill Size: 110mm Package Included: 1 x Hole Saw 1 x SDS Plus Adapter 3 x Guide Drills 3 x Locking Screws If there is any problem with the product, please contact us via the website message, we will provide you with a satisfactory solution within 24 hours