Gauge 14 = 2.06mm thickness & 4.5mm head size. 8 x 4 = 90. 8 x 3 = 110. 8 x 2 1/2 = 132. 8 x 2 = 166. 10 x 3 = 165. 10 x 2 1/2 = 197. 10 x 2 = 242.
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