Jacobs K5 Chuck Key is used on 20N Chucks. A soft steel handle limits the potential for dangerous fracturing under excessive loads. The self-ejecting models with spring-loaded ejectors ensure key disengagement after tightening.
- Nickel thumb grip styles increase leverage and user comfort
- Never apply extensions, pliers, wrenches or ‘cheaters’ of any kind to chuck key handles
- Do not subject chuck key handles to hammer or other impact blows
- Used on 20N chucks