The MF-A02 has a fixing screw located on the side of the gripping area for attachment to the shaft.
Designed for use with 6mm screw headless shafts.
Characteristics:
Color: Black base with silver top cap
Shaft: 6 mm
Shaft type: D-type threaded head
Material: Bakelite
Dimensions: 13.2mm x 23mm (HxW)