Specifications: Name:Electric Hammer Needle Scaler Material: Hardened alloy steel Dimensions: 155mm × 210mm/6.10 × 8.27inch  Description Multi-Surfacing Application – Effectively removes rust, cleans concrete surfacing, drills holes in masonry, and prepares tile installation surfacing Industrial-Grade Durability – Hardened steel construction withstands heavy-duty use Precision Impact Technology – 18 needle design ensures uniform force distribution for consistent results SDS Plus Compatibility – Securely fits most standard electric hammers with anti-slip clamping Ergonomic Conversion – Maintains tool balance while adding needle scaler functionality  Package 1PC Electric Hammer Needle Scaler