inner inlay tube
size:
end outer diameter 19.20 +0.04 mm, end inner diameter 19.00 + 0.04 mm
height: 70 - 0.15 mm
side hole diameter 11.70 - 0.05 mm
2 grooves width: 3.3 mm, 5.3 mm
material: brass ASTM C28000
packing: individually placed in a plastic tray, then into carton
manufactured by CNC turning and milling on sliding head multi-axis CNC lathe