Four way measurement

Top and bottom hooks are fitted with ball bearings to allow rotation under load

The flow of glue is controlled by a hand lever

The 3-speed switch gives you control over the airflow

100 / 0 – 3

BSW Bottoming HSS Tap by Bordo Dust Hose Four way measurementAbout this product: HSS BSW Bottoming Hand and Machine Tap. British Standard Whitworth has a thread angle of 55 degrees as opposed to 60 degrees in Metric and Unified threads. This thread form was developed by Sir Joseph Whitworth in 1841. The thread form has rounded roots and crests and is specified in BS84: 1956. Bottoming Taps have a lead of two threads and are used to ensure minimum thread run out when tapping to the bottom of a blind hole.