Button DTH drill bit for drifting and tunneling
Robit Rocktools
33 mm = 1 1/3" normal body
HT 25R33M 1*8 5*8 2 25°
R25 Bit diameter 38 mm, 1 1/2 inch
38 mm = 1 1/2" normal body
HT 25R38M 2*8 6*8 2 1 30°
R25 Bit diameter 41 mm, 1 5/8 inch
41 mm = 1 5/8" normal body
HT 25R41M 2*8 6*9 2 1 35°
