Manufacturer: OSAWA CO. LTD.
Model: FV-10 

EXPLANATION 

For Easy Pedal Operation!!
The Air Foot Valve FV-10 is an air switch designed for stamping operations.
It can be connected to W101/301 mounting models, W501 series, W701, and other air tools.

Specifications:

Length: 170mm
Width: 82mm
Height: 58mm
Weight: 480g
Hose Joint: 1/4″