Features: Made of high quality carbide tipped metal material, very durable Simple operation, easy to use and fast perforated Used for drilling walls, stones, bricks,or installation of air-conditioning etc. SDS plus shank, male thread adapter. Greatly replace the broken adapter with your drill chuck. High-frequency welding technology, welding openings is very strong, smooth inside and outside welding mouth Specifications: Material: Carbide Tipped Metal Thread: 20mm Length: 110/200/320mm (4.33"/7.87"/12.6") Quantity: 1 Set Note: Please allow 1-3mm error due to manual measurement.pls make sure you do not mind before you bid Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! No Retail Package Package Includes: 1 x Connecting Rod 1 x Drill Bit 1 x Screw