From the Workshop

January 10, 2019

New Workshop 6

Blades for the No 98 hardened, tempered, cryogenically treated and now ground and polished. Pictures of finished planes to follow shortly.

Holtey No 98 blades

May 14, 2014

Window to my Workshop 79

Filed under: A27 Bullnose,Window to my workshop — Tags: , — admin @ 10:53 am

Blades back from heat treatment. They have been vacuum hardened and triple tempered, followed by a two hour nitrogen soak. Note that there is no colouration to the blades, which means there were perfect conditions with no leakage.
 

Holtey bullnose blades
 

Now they ‘just’ need polishing and surface grinding.

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