MULTI-SURFACE APPLICATION: Effectively tackles rust removal, concrete-surface cleaning, masonry drilling, and tile installation preparation - transform your electric hammer into a versatile needle scaler with this SDS shank adapter that delivers professional-grade results across multiple materials. INDUSTRIAL-STRENGTH CONSTRUCTION: Crafted from hardened alloy steel weighing 521.5g with dimensions of 155mm x 210mm, this LONG LASTING needle scaler adapter withstands continuous heavy-duty use while maintaining integrity even during extended operation periods. ADVANCED TECHNOLOGY: Features an innovative 18-needle design that distributes force uniformly across the working-surface, providing consistent results without damaging underlying materials - the strategic needle arrangement insures thorough coverage with each pass. SDS COMPATIBILITY DESIGN: Securely fits most standard electric hammers with an anti-slip clamping mechanism that prevents unwanted disconnection during operation - simply attach to your SDS shank hammer for immediate conversion to a professional needle scaler. ERGONOMIC BALANCE ENGINEERING: Maintains optimal tool balance while adding needle scaler functionality, reducing user fatigue during extended use periods - the thoughtfully designed 210mm length creates leverage that amplifies force while minimizing vibration transfer to your hands. Specifications: Product Name: Electric Hammer Pin-Type Scratcher Weight: 521.5 grams Handle Style: Round handle with two grooves and two notches Applicable Models: Light-duty electric hammer Applications: Rust removal from metal surfaces/roughening concrete/cement surfaces, removing laitance, etc. Color: Black Material: Plastic+Metal Package Contents: 1* Rust removal tool for electric hammer 1* Carrying case 1* Replacement steel needle Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from t