Diablo DMAPL2470 3 4" x 16" x 18" SDS Plus 2 Cutter Carbide Tipped Hammer Drill Bit Makita_Max_Images The beam trolley anchor is Size:7.5 The beam trolley anchor is one of our best options when it comes to choosing a trailing beam anchoring device because of its unique rugged but fast moving aluminum rollers feature Its ease of use and functionality helps users install and relocate onto the next anchoring location quickly maintaining a good level of productivity while preserving the upmost safety compliance Diablo’s SDS Plus 2 Cutter Carbide Tipped Hammer Drill Bits provide one of the fastest and longest lasting drilling solutions on the market for concrete the carbide tips extend life and productivity