Tools

1.5" Carbon steel hole saw with mandrel and pilot bit. This is the proper size for Banjo brand and our other standard-duty .75" bulkhead fittings.

2.25" carbon steel hole saw with mandrel and pilot bit. This is the proper size for Banjo brand 1" and 1.25" bulkhead fittings.

3" Carbon steel hole saw with mandrel and pilot bit. This is the proper size for Banjo brand 1.5" and 2" bulkhead fittings.

3.875" Carbon steel hole saw with mandrel and pilot bit. This is the proper size for the 3" overflow kit. 

4" Carbon steel hole saw with mandrel and pilot bit. This is the proper size for a 3" Multi-tite or rubber grommet. 

5" carbon steel hole saw with mandrel and pilot bit. This is the proper size for 4" Multi-tite and Jones-tite grommets which are used with the tank inlets and overflow siphons.