Description:* This is a centering drill bit adapter set for bar.* One head is SDS shank 2 pits two sockets, the other is hex socket * It can help to convert SDS connection into hexagon connection.* Applicable to hammer, hammer drill, etc.* Can be connected to the head, chamfering various grants and other tools hex chuck. Specification:Material: Chrome Vanadium Stainless Steel Type: SDS Chuck with 2 Holes and 2 Slots, One End is Inner Hexagon Inner Hexagon Size: 6.35MMutter Size: 60mm Quantity: 2 PcsPackage Contents:2 Pcs/Set Centering Drill Bit AdapterNote:1. The actual colors of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2. Please allow slight manual measurement deviation for the data.