BSW Bottoming HSS Tap by Bordo Size:5/16" x 18TPI the M18 Jobsite Radio/Charger features

the M18 Jobsite Radio/Charger features a Bluetooth receiver so you can stream rich

With SDS quick-locking nut for rapid disc changes without tools

Adaptor - 3/8F x 1/4M

also under difficult circumstances

Very good adhesion on all usual porous building surfaces

BSW Bottoming HSS Tap by Bordo Size:5/16" x 18TPI the M18 Jobsite Radio/Charger featuresAbout 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.