#617, open end pins kit includes 18 different sizes including 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21 each 10pcs, total 180pcs in one kit
Diameter 0.8mm, 0.9mm, and 1.0mm, & 360pcs types are also available
#618, stainless steel pin kit includes 36 different sizes including 4, 4.5, ... 18.5, 19, 20, 21, 22, 23, 24.0mm, each 5pcs, total 180pcs in one kit
Diameter 0.8mm, 0.9mm, and 1.0mm, 1.1mm and 1.2mm are available
#620, stem extension kit sizes including 0.7x0.7, 0.8x0.8, 0.9x0.9, 0.7x0.8, 0.7x0.9, 0.8x0.7, 0.8x0.9, 0.9x0.7, 0.9x0.8, each 5pcs, total 45pcs in one kit