Norris Infill Smoothing Plane - No. 51 M

norris plane 51 m
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Norris 51-M Plane Review By: I.Ball

Manufacturer: Norris
Plane Type: Infill, Smoothing
Model No: 51


The Norris 51 M plane is a 7 1/2 inch long dovetailed infill smoothing plane made from malleable iron. This plane is also referred to as the 'Norris 51 Annealed Iron Plane' or 'Norris 51 Malleable Iron Plane'.

The Norris 51 M is fitted with a Norris of London parallel iron plane blade, cap iron, gunmetal screw cap and a blade adjuster

The plane body on the 51 M is referred to as a parallel side body. The plane body is also referred to as dovetailed; the name given to a body where the sole has been joined to the sides with the use of dovetail joints. The dovetails can usually faintly be seen at the base of the plane sides.

The plane is stuffed with wooden infills which consist of a front bun and a closed rear handle.

norris 51 plane

The rear handle has the blade adjuster neatly built into a suitably sized recess allowing the handle to remain as a closed handle.

The blade adjuster allows the blade to be accurately adjusted laterally and moved upwards and downwards to set the depth of cut.

This plane usually has quite a deep mouth to cater for the thick Norris cutter.

The Norris planes were the 'Rolls Royce' of their day and are still considered in high esteem today.

norris a51 plane

Norris A51 or Norris 51?

As I understand it, there is a Norris 51 plane and a Norris 51M but not a Norris A51 as such, or should I say not a plane advertised as a Norris A51.

The 51 and 51M planes are often classed as a Norris A51 due to both the 51 and 51M plane having a blade adjuster like the blade adjuster on the Norris A5's and Norris A6's.

The Norris planes with 'A' in the model number = 'adjustable' so in theory it would follow that the 51 and 51M are A51 and A51M planes.

Please somebody correct me if this is wrong.

Plane Dimensions

192mm (7 1/2 inch)

Plane Markings

norris 51 plane

"Norris 51 London" - found on the face of the gun-metal securing cap

"Norris London, Patent No" - found on the face of the steel blade adjuster nut

"Norris London" - found on the top of the blade

"Annealed Reg'd No. 637729" - found on front end of plane

Manufactured Dates

? - ? (1910's)

norris 51 plane

norris 51 plane

norris 51 plane

norris 51 plane

norris 51 plane

norris 51 plane

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