Product Overview
Bordo 14 Piece HSS UNC Intermediate Tap & Drill Set 6G - 1/2"
BSW BRITISH STANDARD WHITWORTH
The angle of thread is 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.
INTERMEDIATE TAPS have a lead of four threads and are used in most general purpose applications to cut a thread true to a pre-drilled pilot hole.
Manufactured from HSS this general purpose tap is designed for use in medium tensile materials and is for hand or general machine use.
Includes:
- 6G x 32 UNC Intermediate HSS Tap
- 8G x 32 UNC Intermediate HSS Tap
- 10G x 24 UNC Intermediate HSS Tap
- 1/4" x 20 UNC Intermediate HSS Tap
- 5/16" x 18 UNC Intermediate HSS Tap
- 3/8" x 16 UNC Intermediate HSS Tap
- 1/2" x 13 UNC Intermediate HSS Tap
- 2.9mm HSS Bright Jobber Drill
- 3.5mm HSS Bright Jobber Drill
- 3.9mm HSS Bright Jobber Drill
- 5.1mm HSS Bright Jobber Drill
- 6.6mm HSS Bright Jobber Drill
- 8mm HSS Bright Jobber Drill
- 10.8mm HSS Bright Jobber Drill
