330mm blade
O/E:611835700

16mm centre hole

3.6mm thick with 16.5mm centre hole

400mm blade
O/E:511864700

2.2mm thick

2.5mm thick with 16.5mm centre hole

13mm centre hole

1.8mm thick with 20mm centre hole

2.0mm thick

1.7mm thick with 16.5mm centre hole

19 mm plug x 4mm spline x T27

Various Sizes for Chainsaws & Brushcutters