The product utilizes US standard thread. You will find adapters HERE.

Very smooth, composite tip for fine detailing finishes
Made of high grade composite material
Set of 3:
All 1" (25.4 mm) long
The Dome  3/8"( 10 mm) Diameter tip excellent knockdown and blending tip
The Midway 5/32" ( 4mm) Diameter knockdown tip
The Mykcro 3/32" ( 2.5mm ) Very precise knockdown tip
Great for aluminum and steel panels
Fits most knockdowns