T51-127-16button DC spherical retrac bit

T51 Dome Button DC Spherical Retrac Bit

Diameter: 76mm, 89mm, 102mm

Skirt body: retrac, and normal, straightrac

Face type: flat, uniface, Drop Center

Carbide shape: Dome, ballistic, semi-ballistic

Used in bench drilling, underground long hole drilling to match extension MF rod, MM rod heavy duty top hammer.

T51 Dome Button Threaded Drill Bitwith flat face design, 89 mm diameter match with extension drill steels.

T51-127-16button DC spherical retrac bit, 14mm*8+13mm*8