ITEM NAME:3 Pcs 2Pit 2 Slots SDS Round Shank Convert Shank Socket Extension Bar SDS E V9V9 3 Pcs 2Pit 2 Slots SDS Round Shank Convert Shank Socket Extension Bar SDS E V9V9 No-Load Speed: 1200rpm Wattage: Under 500W Weight: 105g / 3.71oz Rated Voltage: 220V Frequency: allows hammers or percussion drill to use hexagonal shank tools is,customized: Yes Model Number: Square Shank Convert Shank Electric Hammer Conversion Extension Rod Usage: Home DIY Rated Input Power: Quick and easy screwdriver bit change Power Source: Battery Hammer Type: Jack Hammer Shank: SDS + Square head Product Description: allows hammers or percussion drill to use hexagonal shank tools Features: Spring-loaded ball bearing locks on to sockets DIY Supplies 2: Metalworking DIY Supplies: Electrical A necessity product make a drilling job much easier. Quick and easy screwdriver bit change. Spring-loaded ball bearing locks on to sockets. Good quality and high precision, durable for daily use High occlusion to match hammer perfectly, which greatly decrease damage to screw. Allows SDS hammers, cordless drill, pistol drill or percussion drill to use the square tools. colour: gray Material: metal size: Square Diameter Size: 1/2(12.7mm), 3/8(9.5mm), 1/4(6.35mm) Length: 60mm / 2.36in Package Contents: 3 * Conversion Extension Rod Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.