Grade - A2 Stainless Steel. Type - Most common Large head grooved. 8mm 17.5mm 15.8mm 1.5mm 1.25 0.5mm - 3mm. 6mm 16mm 13mm 1.5mm 1.0 0.5mm - 3mm. 5mm 13mm 9.7mm 1mm 0.8 0.3mm - 3mm. 4mm 9.5mm 9mm 1mm 0.7 0.5mm - 2mm.
eBay