Drill Adapter: The shank of the SDS MAX Drill Chuck Conversion Tool fits any SDS Max Demolition Hammer, regardless of the manufacturer, and allows the rotary hammer to work with any SDS plus drill bit 40 Chrome Steel Material: This SDS Max to SDS Plus Adapter is constructed of premium chrome steel, featuring a dense structure, high hardness, durability, and resistance to breakage Special Treatment: In addition to heat treatment, this SDS Max to SDS Plus adapter is sandblasted and oil-resistant treated for enhanced reliability, performance, and longevity Firm Connection: The adapter snaps into place quickly and easily, securely holds SDS-plus drills of all sizes, and allows for easy insertion and removal Compact and Portable: Small and lightweight, easy to carry and store in your tool bag Item Type: Drill Adapter Function: Adapter Chuck Adapter Chuck Head Diameter: 1in Adapter Chuck Hole Diameter: 10mm / 0.4in SDS Max to SDS Plus Adapter Color: Silver Material: 40cr steel Package Contents: 1 x Drill Adapter Note: Light reflection and different displays may cause slight color variations between the image and the actual item. Measurement allowance is +/- 1-3cm