Arbor diameter: 27 mm; 
Spacer diameter: 41 mm;
Thickness: 20 mm

Wrench for ER40 nuts;

Length: 210 mm

Arbor diameter: 40 mm; 
Spacer diameter: 55 mm;
Thickness: 100 mm

Shell mill holder diameter: 22 mm;

Screw thread: M10;

Used with shell mill holders

Arbor diameter: 27 mm; 
Spacer diameter: 41 mm;
Thickness: 10 mm

Arbor diameter: 27 mm; 
Spacer diameter: 41 mm;
Thickness: 6 mm

Shell mill holder diameter: 40 mm;

Screw thread: M20;

Used with shell mill holders

For use with ER collet chucks

Arbor diameter: 27 mm; 
Spacer diameter: 41 mm;
Thickness: 3 mm

Arbor diameter: 32 mm; 
Spacer diameter: 46 mm;
Thickness: 1 mm

Wrench for ER50 nuts;

Length: 230 mm

Arbor diameter: 27 mm; 
Spacer diameter: 41 mm;
Thickness: 2 mm

Arbor diameter: 40 mm; 
Spacer diameter: 54 mm;
Thickness: 1 mm

Used with shell mill holders;

Shell mill holder diameter: 32 mm

Arbor diameter: 40 mm; 
Spacer diameter: 55 mm;
Thickness: 30 mm