FPC ลูกบ๊อกยาวรู 1/2″ 6 เหลี่ยม (4SD-H)

8 mm(5/16"), 9 mm, 10 mm, 11 mm(7/16"), 12 mm, 13 mm, 14 mm, 15 mm(19/32"), 16 mm(5/8"), 17 mm, 18 mm, 19 mm(3/4"), 20 mm(25/32"), 21 mm, 22 mm(7/8"), 23 mm, 24 mm(15/16"), 25 mm, 26 mm, 27 mm(1-1/16"), 28 mm, 29 mm(1-1/8"), 30 mm(1-3/16"), 31 mm, 32 mm(1-1/4")