1/4" Carbide SDS-Plus Bit with 9" Length Milwaukee's 44 magnum series carbide drilling bits offers a unique multi-faceted carbide insert reducing the breakage possibility when drilling through re-bar and mesh. The distinctive chisel shaped tip breaks concrete quickly for faster penetration. The four fluted spiral shaft has improved dust removal resulting in less bending stresses. Features: 1/4" Diameter 9" Drilling Depth 11" Overall Length Carbide Construction Since its founding in 1924, Milwaukee has focused on a single vision: To produce the best heavy-duty electric power tools and accessories available to the professional user. Today, the Milwaukee name stands for the highest quality, durable and reliable professional tools money can buy.