Pilot, Round Shank, 1316 Diameter Head, 716 Shank Diameter, 178 Overall Length, HSS, Bright, Qualtech, Mfr#: DEWPIL1-3/16X7/16$33.15+
3/8 x 4-1/4 Carbide Tipped Hot Tap Pilots with Dual Wire Retention., Tapmaster, Mfr#: TM-908100$63.39+
135° Welding Point Drill Cle-Line 2195 Steam Oxide HSS-CO RHS/RHC 6.00mm, Cle-Line, Mfr#: C20988$12.89+