Wide model compatibility Designed to fit multiple drill models including DCD771C2, DCD777C2, DW959K2, and more. This ensures you can use it confidently across different tools without worrying about fit or performance issues. Ideal for users who own multiple drills or need a reliable replacement part that works with established models. Precise dimension fit Manufactured to exact dimensions of 1.75 x 1.65 x 2.10 inches, matching the original installation position . This precision fit means quick and easy installation without modifications, ensuring proper alignment and stable operation every time. Durable metal alloy construction Built from strength metal alloy to resist wear, impact, and repeated use. The robust build offers long service life, making it suitable for both professional tradespeople and home enthusiasts who require dependable equipment. Secure clamping performance Engineered with a precision structure that holds drill bits firmly in place, preventing slippage during drilling tasks. This secure grip helps maintain accuracy and reduces the risk of errors or damage to work surfaces. Practical use scenarios 1. Ideal for woodworking projects where precise drilling is critical for clean joins and alignment. 2. for home renovation tasks such as installing shelves, cabinets, or fixtures requiring accurate holes and consistent bit performance. 3. Suitable for construction sites, ensuring reliable operation under demanding conditions and daily use. This product offers a combination of model compatibility, precision manufacturing, durable materials, and secure performance, making it a practical and reliable choice for a wide range of drilling applications.