ITW Buildex 1074000 1/4,NEIKO 10194A Titanium Step Drill Bit, High-Speed Alloy-Steel,71+4-2LvrQL._AC_UF350,,WT DRILLING AND MILLING MACHINE ZX7025 1,715wgp_tRwL._SL1500_1ad4960c-,71-c+rEai-L._AC_UF350,,Amazon.com: Bosch HCFC5034 3/4 In. x 24 In. x 29 In. SDS-max,Amazon.com: Bosch HCFC5034 3/4 In. x 24 In. x 29 In. SDS-max,Inner Tube Assembly for Hq Core Barrel - Core Barrel and,NEIKO 10174A Quick Change Spiral Grooved Step Drill Bit | 10