Knurled Steel Scriber

I was tired of always losing scribers and decided the kids needed to make their own.

Ramset nail

100mm of bright steel 12mm in Dia

Lathe

6mm Tap

Cut the 12mm bright steel to 100mm long

Center drill and face both ends

Using a 5mm drill, drill in 30 mm from one end

Using a 6x1mm tap, tap down 25mm - I hold the work in the chuck and start the tap by holding it in the tailstock

Fit the ramset nail

Fit the scriber in the chuck and cut a 6degree taper - I like to fit the nail and leave @1mm clearance

Hold the scriber by the nail in the chuck and support the other end with a live center

Set up the knurling tool and cut the knurl using the auto feed

Clean up and enjoy

Like a sign I saw

BUILT NOT BOUGHT