discount 70% in 2018-09-26 to 2018-09-28
price: USD$ 105.70
freight :USD$7.00,(Postal parcel)
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M2 high speed steel manufacturing, material composition: W6Mo5Cr4V2, M2 or 6542, heat treatment hardness HRC63-66 degree, stable and excellent cutting performance, wear resistance, good price, high price.
Specification: G1/2-14 for example, 1/2 pipe thread size (also known as the 4 inch 1/2 in charge of 14 threads per inch), said the number of teeth (14 teeth per inch), the pitch is 25.4/14,Z said the 60 cone tube, ZG said the 55 cone tube, G said the 55 degree straight pipe thread (for pipe thread processing in a non sealed)。All the taps are full grinding (shank not square end mill).
Manufacturing standards: JB/T9994-1999 (equivalent to international standards: ISO2284-1987
G1/8- hole diameter nominal size is 1/8 inches, 9.728 mm diameter thread
G1/4- hole diameter nominal size is 1/4 inches, 13.157 mm diameter thread
G3/8- hole diameter nominal size is 3/8 inches, 16.662 mm diameter thread
G1/2- hole diameter nominal size is 1/2 inches, 20.955 mm diameter thread
G3/4- hole diameter nominal size is 3/4 inches 26.441 mm diameter thread
G1- hole diameter nominal size is 1 inches, 33.249 mm diameter thread