3?16mm Key Type Drill Chuck Adapter Kit 12?20UNF Thread 3 Jaw Chuck for Impact Driver Power Drills

Feature: 1. 3 JAWS CHUCK: 3 jaw chuck design with key for quick replacement and easy locking of the drill bit, preventing it from loosening during work. 2. COMPATIBLE TOOLS: This drill chuck adapter kit is compatible with most rotary drills, impact drivers, and drilling machines with 12?20UNF thread. 3. STANDARD SIZE: Equipped with a connecting rod, with 12 inch thread and standard shank, ensuring easy installation on the tool, stable and reliable. 4. EXCELLENT STEEL: The drill chuck is made of excellent 45 steel, with high hardness, high strength, wear resistance, and oxidation resistance. 5. CLAMPING RANGE: The clamping range of the drill chuck is 3?16mm, with a wide range of application, ensure firm locking, improve work efficiency. Specification: Item Type: Drill Chuck Kit Material: 45 Steel Drill Chuck Clamping Size: Approx. 316mm 0.120.63in Drill Chuck Connection Thread: 12.7mm (12 inch) Connecting Rod Diameter: 12.7mm (12 Inch) Thread, Shank: 4 Pit Shank. Package List: 1 x Drill Chuck 1 x Drill Chuck Key 1 x Connecting Rod 3 JAWS CHUCK: 3 jaw chuck design with key for quick replacement and easy locking of the drill bit, preventing it from loosening during work. COMPATIBLE TOOLS: This drill chuck adapter kit is compatible with most rotary drills, impact drivers, and drilling machines with 12?20UNF thread. STANDARD SIZE: Equipped with a connecting rod, with 12 inch thread and standard shank, ensuring easy installation on the tool, stable and reliable. EXCELLENT STEEL: The drill chuck is made of excellent 45 steel, with high hardness, high strength, wear resistance, and oxidation resistance. CLAMPING RANGE: The clamping range of the drill chuck is 3?16mm, with a wide range of application, ensure firm locking, improve work efficiency.