Repairing small aluminum holes step 1 clean the area around the hole in the aluminum with a sponge soaked in warm water mixed with liquid detergent.
Drilling holes in aluminum sheet.
Co z 5pcs hss cobalt multiple hole 50 sizes step drill bit set with aluminum case.
Drilling a hole in sheet metal with a twist drill is a rather straightforward operation.
Sooner or later every homebrewer needs to drill holes in sheet metal.
Whether you want to fix your aluminum siding or mend your aluminum boat you may want to know how to repair holes in aluminum.
When drilling thin sheet metal clamp the metal over a piece of sacrificial plywood or other flat sheet good like mdf or particleboard to help prevent the bit from tearing up the hole.
The classical situation is drilling holes to mount switches connectors and potentiometers on the front panel of some instrument.
To be used with sheet metal only.
The wooden bread layers of the sandwich keep the sheet metal flat and prevent the drill bit from wandering as it bores through the sheet metal.
Rinse thoroughly with water to remove the detergent dirt and debris.
Simply sandwich the sheet metal between two pieces of wood and clamp everything down on a table or workbench.
Automatically deburrs hole when you drill.
The problem is that the diameter of the hole is much larger than the thickness of the sheet and regular twisted drill bits do not work well.
For the cleanest hole clamp a second piece on top of the metal making a sacrificial sandwich.
Furthermore the drilled hole becomes enlarged beyond.
Drilling soft materials such as aluminium and copper can cause a whole range of challenges that can limit tool life minimize production and cost you money.
Some bits have 118 degree tips which will get dull faster.