- Manufactured from drop forged, hardened and tempered chrome vanadium steel
- Ergonomic T-handle
- Black oxide finish
- Ball-end design enables use of up to 25° angle
- Fits most domestic central heating pump heads
- Size: 4mm & 5mm
Pump Head Key Set contains 4mm and 5mm pump head keys to fit most domestic central heating pump heads. Made of drop forged hardened and tempered chrome vanadium steel with black oxide finish for corrosion protection. Ergonomic T-handle for controlled driver and reduced fatigue with ball-end design to enable use of up to 25 degree angle.