When using a reamer to enlarge holes, how often should you lubricate the drill bit?

Lubricating the drill bit every hole is essential for several reasons. First, lubrication reduces friction between the reamer and the material being worked on. This friction can generate heat, which could potentially damage both the reamer and the workpiece. Proper lubrication helps maintain optimal cutting temperatures and prolongs the life of the tool.

Additionally, lubricants help in the effective removal of chips and debris from the hole, ensuring a cleaner cut and preventing the reamer from becoming clogged. This is particularly important when working with materials that may produce sticky or clumpy shavings, as is often the case with metals.

Overall, consistent lubrication throughout the reaming process promotes better efficiency and quality of work, making it a standard best practice in aerospace assembly and machining operations.