Goliath BSW Bottoming Left Hand HSS Bright Tap Drilling Forged to ASTM A105

Forged to ASTM A105

◆Solid weather proofed designed for outdoor use

consistent heat distribution

taking a 125mm disc and cutting to 33mm

Goliath BSW Bottoming Left Hand HSS Bright Tap Drilling Forged to ASTM A105HSS Bright Finish BSW Hand and Machine Bottoming Tap This thread form was developed by Sir Joseph Whitworth in 1841 British Standard Whitworth angle of thread is 55 degrees as opposed to 60 degrees in Metric and Unified threads LEFT HAND HSS Bright Finish BSW Hand and Machine Bottoming Tap. British Standard Whitworth angle of thread is 55 degrees as opposed to 60 degrees in Metric and Unified threads. HSS taps provide a high hardness to toughness