1/2" BSB HSS Taper Tap Set M16x70 ZP Drill diameter 30
Baker’s notes & crumb story
Description
Drill diameter 30
Point length (I) 25
with solid brass 350gm plumb bob
power stations
1/2" BSB HSS Taper Tap Set M16x70 ZP Drill diameter 30Goliath 1 2" Bsb Hss Taper Tap For producing precision threads by hand tapping, for starting threads either second or bottoming taps should used after to achieve desire thread depth.