drill bit extensions
vermont american 14125 5 16 inch x 13 inch rotary hammer bit
p use rotary hammer bits for drilling in concrete stone brick and cinder block p p ul li a specially formulated carbide tip withstands impact sustained from hammer drills li entire length of bit is fully hardened to rockwell 45 c for extra strength li for use in hammer drills with rotary and hammer settings li 5 16 diameter li 1 4 shank diameter li 11 1 2 flute length li 13 overall length li carded li ul p
vermont american