Select Gauge, Diameter, Ball 18G, 1/4 in(6mm), 3mm 18G, 5/16 in(8mm), 3mm 18G, 3/8 in(10mm), 3mm ===================== 16G, 1/4 in(6mm), 3mm 16G, 5/16 in(8mm), 3mm 16G, 3/8 in(10mm), 3mm 16G, 3/8 in(10mm), 4mm 16G, 7/16 in(11mm), 4mm ===================== 14G, 1/4 in(6mm), 3mm 14G, 5/16 in(8mm), 3mm 14G, 5/16 in(8mm), 4mm 14G, 3/8 in(10mm), 4mm 14G, 7/16 in(11mm), 5mm 14G, 5/8 in(16mm), 6mm ===================== 12G, 7/16 in(11mm), 5mm(+$1) ===================== 10G, 1/2 in(12mm), 6mm(+$2) 10G, 9/16 in(14mm), 6mm(+$2) ===================== 8G, 1/2 in(12mm), 6mm(+$4) 8G, 9/16 in(14mm), 6mm(+$4) ===================== 6G, 1/2 in(12mm), 8mm(+$6) 6G, 5/8 in(16mm), 8mm(+$6) ===================== 4G, 1/2 in(12mm), 8mm(+$8) ===================== 2G, 1/2 in(12mm), 8mm(+$10) 2G, 5/8 in(16mm), 8mm(+$10) ===================== 0G, 5/8 in(16mm), 10mm(+$14) 00G, 3/4 in(20mm), 12mm(+$18)