Folding 52 blade set, individually stamped with accurate thread profiles. Range 4-62 BSW and 0.25-6mm Metric. Features & Benefits:Folding 52 blade set, individually stamped with accurate thread profiles.Range: 4-62 BSW/0.25-6mm.Model No. AK73SPG Specifications: Model No AK73SPG Blade Qty: 52 Brand: Sealey Nett Weight: 0.07kg Pitch Gauge: BSW; 4, 4.5, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 18, 19, 20, 22, 24, 25, 26, 28, 30, 32, 36, 40, 48, 60, 62, Metric; 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.6, 0.7, 0.75, 0.8, 0.9, 1, 1.25, 1.5, 1.75, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6mm Thread Type: BSW/Metric