One of our best selling items for K40.
The laser head is designed for focus lens with 12mm/15mm/18mm/20mm in diameter with air-assist. It fits a 20mm diameter reflection mirror. With the included O-ring, different diameter lenses can be used! This is a GREAT replacement for stock K40 laser head which comes without air-assisted.
The nozzle hole is about 5mm, so different focus lenses (38.1; 50.8; 63.5) will fit.
- Air plug outer diameter: 5.5mm
- Mounting plate cut hole requirement : 14.5mm dia.
- Suggested tubing: 5 X 8 Silicon Flex Tube for CO2 Water Cooling
NOTE: Mirror or lens NOT included.