Manufacturer: OSAWA CO. LTD.
Model: W301-II

EXPLANATION 

The Wonder-Gun Hole Cleaning Model W301-II (without hose joint) draws in and blows off simultaneously, making it ideal for cleaning chips and dust from holes with soles.
It is especially effective for tapping operations.
The W301-II (without hose joint) is manufactured by fitting the W301-II.
Custom-made air nozzles with various sizes in OD and length are also available.