Description Alpha carbon coarse bottoming taps have a UNC imperial thread and are manufactured to be used for either machine or hand applications as well as production work. Features: Designed to tap into aluminium, brass, copper and steel Used for tapping into blind holes with the two threaded lead These bottoming taps must always be used alongside lubricant to aid in chip removal and lessen the friction binding Providing a continuous cutting edge with almost no taper Coarse bottoming taps – quick reference Code Size Specs Qty UNCCB1 25.40mm, 1” HSS 1 UNCCB10G 10g x 24 HSS 1 UNCCB1-14 31.75mm, 1 1/4” HSS 1 UNCCB1-18 28.58mm, 1 1/8” HSS 1 UNCCB12 12.70mm, 1/2” HSS 1 UNCCB12G 12g x 24 HSS 1 UNCCB14 06.35mm, 1/4” HSS 1 UNCCB316 04.76mm, 3/16″ HSS 1 UNCCB34 19.05mm, 3/4” HSS 1 UNCCB38 09.53mm, 3/8” HSS 1 UNCCB516 07.94mm, 5/16” HSS 1 UNCCB58 15.88mm, 5/8” HSS 1 UNCCB5G 5g x 40 HSS 1 UNCCB6G 6g x 32 HSS 1 UNCCB716 11.11mm, 7/16” HSS 1 UNCCB78 22.23mm, 7/8” HSS 1 UNCCB8G 8g x 32 HSS 1 UNCCB916 14.29mm, 9/16 HSS 1
