Quality Material: High Strength HSS and ABS Keyless Chuck, very strong and durable, anti-abrasive, impact resistant. This chuck is constructed from premium HSS material which is long-lasting and robust. Fitment: 1/2-20UNF Clamping Range - This keyless chuck with a maximum capacity of 13mm is highly durable to prevent vibrations; use a ring between the two chucks. The chuck size must be adjusted between 2 and 13mm, accommodating 2-13mm drill bits. Easy to Use: This keyless chuck tightens by hand for simple changes. Quick change SDS shank for electric hammer. Just plug it in, hand tighten your standard bit and you're set, ready to use standard bits in SDS; it offers great smooth action and more. Strong Holder: Featuring a unique thrust bearing, with a refined design, it provides a strong grip simply by tightening the chuck, ensuring it is tight and stable. This chuck enables the use of other drill bits for metal, wood, screws, etc., achievable by setting the drill to drill mode. Removable: The adapter is removable to suit your needs, eliminating the need for an additional drill bit. Ideal for SDS, compatible with various electric tools including electric hand drills, hammer drills, and more standard electric drills.