Sinodrills Cross Bit
Tapered cross bit diameter: 30mm, 32mm, 35mm, 38mm, 41mm, etc.
Tapered bit degree: 4.46 degree, 7 degree, 11 degree, 12 degree, etc;
Threaded cross bits diameter: 33mm--64mm
Thread sizes: R22, R25, R28, R32, R35, R38, T38, T45, T51, GT60, ST58, ST68, SR32, and SR35;