Drill Adapter: The of the SDS MAX Drill Chuck Conversion Tool will fit any SDS Max Demolition Hammersl, no matter which manufacturer's drill hammer, and the hammer drill will work with any SDS plus drill40 Chrome Steel Material: This SDS Max to SDS Plus Adapter is constructed of premium chrome steel, with a dense structure, strong hardness, durability, and not easy to breakSpecial Treatment: In addition to heat treatment, this SDS Max to SDS plus adapter is also sandblasted and anti corrosion oil treated, for outstanding reliability, performance and durabilityFirm Connection: The adapter snaps into place quickly and easily, securely holds SDS-plus drills of all sizes, and is easy to insert and remove and Portable: Small and easy to carry, you just need to put it in your bag.Item Type: Drill AdapterFunction: Adapter ChuckAdapter Chuck Head Diameter: 1inAdapter Chuck Hole Diameter: 10mm / 0.4inSDS Max to SDS Plus AdapterColour:SilverMaterial:40cr steelPackage Contents:1 x Drill AdapterOnly the above package content, other products are not included.Note: Light reflection 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.