Chrome vanadium steel

What's in the box
1 x 3/8
1 x 5/16
1 x ¼
1 x 7/32
1 x 3/16
1 x 5/32
1 x 9/64
1 x 1/8
1 x 7/64
1 x 3/32
1 x 5/64
1 x 1/16
1 x 1/20
1x 1.3mm
1 x 1.5mm
1 x 2mm
1 x 2.5mm
1 x 3mm
1 x 4mm
1 x 5mm
1 x 5.5mm
1 x 6mm
1 x 7mm
1 x 8mm
1 x 10mm