Hello,

These are high quality replacement brush chipper knives engineered and machined to O.E.M. specifications using high-grade A-8 modified steel.(industry standards) and heat-treated for long wear and dual-tempered for toughness.

You get 2 new brush chipper knives for Vermeer BC1000/BC1000XL/drm12

9 X 4-1/2 X5/8 double edged with 4 holes (p/n 153175001) 

We have the bolts/nuts for this chipper see our stores                                                                                                                                                                                                                                              

Any questions email us thanks/no returns.