GEARWRENCH Mechanics Tool Set 80715 33 Piece 1 2 Inch Drive Full Polish Chrome 90 Tooth Ratchet SAE 6 Point Standard Deep Sockets Auto Repair Tool Boxes Electrical Conduit Runs: Creates exact Electrical Conduit Runs: Creates exact entry points across rigid metal housings and dimensional lumber for heavy gauge commercial wiring without pilot bit wandering providing the exact clearance dimensions needed for delicate panel inserts and tongue and groove alignments resolving structural rounding vulnerabilities during high intensity mechanical adjustments Knurled Extension Bars: Includes 3 inch and 5 inch full polish chrome attachments with knurled steps for non slip manual finger turning