Starrett O-1 Tool Steel No. 59150: 3/64" Thick X 3/4" Width X 36" Length Toolmakers Bevel Edge Straight Edge 6mm in length not including

6mm in length not including the lever

The back of the IRIS has "IRIS and Makers Cabinet" laser-engraved on the leaves

Nicholson XF ( the XF line is Nicholson's best ) SWISS MADE  Die Sinkers  RIFFLER File 36018N  #2 Cut Style #5

allowing the screwdriver to sit flush in screw slots and fit directly into narrow counterbored holes

Standard: NF ISO 5746

Starrett O-1 Tool Steel No. 59150: 3/64" Thick X 3/4" Width X 36" Length Toolmakers Bevel Edge Straight Edge 6mm in length not includingStarrett O 1 Tool Steel No. 59150: 3 64" Thick X 3 4" Width X 36" Length 3 64" x 3 4" x 36", AISI O 1 (496) Flat Stock. AISI O 1 oil hardening tool steels are dimensionally stable and can be used for all intricate work, including work with thin sections, with minimal risk of cracking.