Feature●Solid 10 barrel style complies for use with dustless vacuum systems. For use in occupancy facilities such as buildings, municipalities, theme parks, public areas etc.●Manufactured with industrial double laser welded turbo segments with an aggressive bond. Idustrial double weld technology makes it the safest in the industry●For fast drilling of hard materials such as heavily reinforced concrete and stone●High quality diamond concentration and spaced segments allow for very fast drilling of heavy steel and medium aggregateDescription 1 1/4 Laser welded dry core bit for reinforced concrete, high psi stone. 5/8-11 Thread. Solid 10 barrel style complies for use with dustless vacuum system. Dustless Wet+Dry HEPA Vacuums