Self Tighten Drill Chuck Quick Change Adapter Conversion Tool Thread 9/32 -40 Impact Drill Tool Attachment Impact Drill Chuck Converter 2Pcs

Description: Drill Chuck Inner Diameter: 6.2mm; Mount Thread: 9/32-40UNF. Easy to Use: Keyless chuck finger tightens for easily and quickly changing drill bits. Feature: thrust bearing is easy to handle applied translate into greater clamping force effectively preventing drill bits loose off more reliable. Model: 4000 400 3000 398 395 300 285 275 200 100 8200 800 780 770 7700 750. Material: Made of steel material.Durable to use. Size Chart: 1.4cmx0.93cmx2.26cm/0.55inchx0.37inchx0.89inch Clamping Range: 0.03cm-0.32cm/0.01-0.13inch Package Includes: 1 or 2 Keyless Drill Chuck(Optional) Note: Please allow slightly errors due to manual measurement and different monitors.