Features: Easy to install, no additional tools are needed, and the installation process is very convenient. Made of high-quality materials, exquisite workmanship, very good quality and long service life. Small in size and light in weight, which is very convenient to carry around. Suitable for GBH2-26DFR GBH2-28DFV GBH4-32DFR electric hammer. The appearance of this product is very matching, and there will be no sense of violation after installation. Specifications: Material:Metal+Plastic Size:Approx.75x47mm/2.95x1.85inches Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Drill chuck