Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to drill holes on an engine lathe using the carriage [title] Attach the chuck to the lathe according to the manufacturer's instructions. [title] Loosen off the chuck, mount your work into the chuck and then re-tighten the chuck. [title] Select your tooling and speeds and feeds.

Ending1: [title] Put the base bush on with the cleat you have selected. [title] Drill out small ball holes into the cleat, at various lengths. Ending2: [title] Mount a lathe center in the tailstock. [title] Place the drill with the square split bushing into the tool post and shim or adjust to ensure that the drill center lines up with the lathe center. Ending3: [title] Set the grinder's range appropriately. [title] Use the drill, paddle head and steel grinders to till the cut marks are spotless and clean. Ending4: [title] At the high end, drive the chuck until the engine spool and hose combine and the grill heat needs to reach the pan. [title] Remove the lens and screw it back in using the outer snap plate.

Answer format: ending1/ending2/ending3/ending4