ITEM NAME:2-13mm SDS Hammer Conversion Drill Plastic Chuck Sleeves+1/2 Thread Adapter A#S Product Description Description: 2-13mm SDS Hammer Conversion Drill Hand Clamp Drill Plastic Chuck Sleeves+1/2 Thread Adapter Specifications: Material: chrome vanadium steel Specification: 1/2-20UNF Gripping: 2-13mm/0.08-0.51" Size: 96*43mm/3.78*1.69" Weight: 260g Purpose: for electric spanner to switch three jaw chuck. Notes: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-3cm measuring deviation due to manual measurement. Included: 1 x Plastic Chuck Sleeves+1/2 Thread Adapter.Purpose: for electric spanner to switch three jaw chuck. Included:1 x Plastic Chuck Sleeves+1/2 Thread Adapter. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures.