[Histonet] Blade holder assitance

[Charles Riley]

Hello all,

I am working with a microtome that has an unusual blade holder.  Standard
low profile blades are too short and are covered by the stage so no cutting
occurs. The standard high profile blades stick out above the blade holder
edge significantly and this causes wobble in the blade while sectioning
(creating thick and thin sections and or skipping sections entirely before
cutting a really thick section).

Can anyone suggest what type of blade I should purchase to use with this
holder?  I was thinking maybe sapphire knife blades might fit but didn't
want to waste money buying items I don't need