Quality Material: High Strength Hss And Abs Keyless Chuck, Very Strong And Durable, Anti-Abrasive, Impact Resistant. This Chuck Is Made Of High Quality Hss Material Which Is Durable, Sturdy. Fitment: 1/2-20UnfClamping Range - - This Keyless Chuck In 13Mm Maximum Is Very Robust To Avoid Vibrations Put A Ring Between The Two Chucks.The Size Of The Chuck Must Be Adjusted Between 2 And 13Mm , Which Fits 2-13Mm Drill Bits.Easy To Use: This Keyless Chuck Tightens By Hand For Easy Changes. Quick Change Sds Shank For Electric Hammer. Just Plug It In, Hand Tighten Your Standard Bit And You'Re Done, Ready To Use Standard Bits In Sds, It Offers Great Smooth And Smooth Action And More.Strong Holder: With Unique Thrust Bearing, Delicate Design, For Strong Grip Just By Tightening The Chuck, Tight And Stable. This Chuck Allows You To Use All Other Drill Bits For Metal, Wood, Bells, Bits For Screwing This Is Possible By Setting The Drill In The Drill Position.Removable: The Adapter Is Removable, To Replace It According To Your Needs, So You Do Not Need To Ask For An Additional Drill Bit. Perfect For Sds, Gsb And Gsr, Electric Hand Drill, Hammer Drill And More Regular Electric Drill.