drill bit extensions
vermont american 14125 . 31 inch x 13 inch rotary hammer bit
use rotary hammer bits for drilling in concrete stone brick and cinder block a specially formulated carbide tip withstands impact sustained from hammer drills entire length of bit is fully hardened to rockwell 45 c for extra strength for use in hammer drills with rotary and hammer settings 5 16 diameter 1 4 shank diameter 11 1 2 flute length 13 overall length carded length 14 9 width 1 8 sku jnsn57189
vermont american