DYC Helical Flute Reamer, 45° Helix 13mm–22mm Size:19MM Specification item model symbol Specification Specification item model symbol Specification information built in magnet No built in magnet installation support B Basic type tube inner diameter 16 tube inner diameter 16mm cylinder stroke 15 cylinder stroke 15mm dual stroke mark No dual stroke mark cylinder stroke 2 Cylinder stroke 2 None option Standard (rod end female thread) auto switch Without auto switch Auto switch additional symbol 2 with or without Custom made specifications standard Specification item model symbol Specification information installation support B Through hole double end tap common (standard) tube inner diameter 32 Bore size 32mm Types of port screws M thread (ø12 to ø25)