【SDS-Plus Hammer Compatible, Star Needle Scaler】Even force distribution, compact design and broad versatility. Supplied with a round-shank holder (two slots + two grooves) and an anti-slip grip. 【18 Hardened Steel Needles】Fitted with 18 × 3 mm hardened steel needles made of tungsten-alloy steel for high strength, toughness and heat-treat performance. Surface-hardened for excellent wear resistance and concentrated impact—ideal for rust removal on metal, roughening concrete/cement surfaces, slurry cleaning and similar tasks. 【Hammer-Needle Tool Adapter】A multi-purpose accessory for SDS hammer drills that lets you tackle rust removal, concrete drilling, masonry drilling and tile surface prep with one compact tool. 【Anti-Slip Handle Design】Handle surface is textured for a secure grip—even with gloves—reducing hand fatigue during extended use. The cylindrical shape follows ergonomic principles for comfortable control. 【Wide Range of Applications】Perfect for metal derusting, concrete/cement surface prep, spot cleaning, roughening, slurry removal, wall scabbling, concrete shell-coat removal and more. Includes an extra replacement needle to extend service life and a portable storage case for neat organization and easy transport., Manufacturer: LuLobtg