Mounting spigot, bore and all contact surfaces are ground at the collar.
For flexible extensions of face mill arbors. Economy alternative to expensive custom-made arbors. 3 options for use: short (45 mm) or long (70 mm) extension or maximum extension by combining two short extensions (2×45 mm).
Suitable lock screw.
Toggle spanner No. 309840,
Spare screws No. 301107; 301108; 301111,
Spare screw No. 301109 for mounting 2 short extensions (2×45 mm).