This high quality laser head mount set is made for the DIY CO2 machine. It's designed to carry a focal length 50/55mm (20mm dia.) focus lens and a 25mm reflection mirror. The barrel is adjustable and has an air assistant option ready.

Adjustable length: 30mm

Mirror diameter: 25mm

Lens diameter: 20mm

Beam direction: Left to Right

Set screw hole diameter: 3.5mm

Note: Good for focal length 50.8mm/2" focus lens. If focal length is more than 50.8mm/2", proper replacement tip is required.

Air assisted plug included (picture does not show)

Suggestion tube to use with the air plug: 5X8 Silicon Flex Tube for Air Assistance or Water Cooling