Genuine Part No's: NB21-8051, 6112, 621 80030 00, 6218003000, 621-80030-00, 168797-8, 621 80030 01, 6218003001, 621-80030-01, 

For Robin NB20A, NB211, NB211A, NB211C, NB211T Trimmers, Strimmers, Brush Cutters,

1 x GENUINE Special Blade Fitting Lower Clamp Washer, 

OD = 46.8mm, 

Height = 15.6mm, 

Has a 6 splined centre hole. 

VERY IMPORTANT NOTE: TO BE ABLE TO FIT A BLADE YOU NEED TO MAKE SURE YOU HAVE THE LARGE UPPER WASHER STILL ATTACHED TO THE GEAR HEAD WHEN YOU REMOVED THE LINE HEAD AND THAT YOU ALSO HAVE THE CORRECT BLADE TO NUT OR HAVE PURCHASED ONE TO FIT IT ALL TOGETHER. WE ALSO STOCK THE BLADE NUTS. 

FREE DELIVERY WITHIN THE UK !