Stanley Core Box Plane - No. 57

stanley 57 core box plane
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Stanley 57 Plane Review By: I.Ball

Manufacturer: Stanley

Plane Type: Core Box

Model No: 57


The Stanley 57 Core Box plane is a specialist plane which was originally designed for circular core box making.

The Stanley Core Box plane number 57 was fitted with hardwood rear handle and bulbous front knob, usually made from Rosewood. The handle and knob were similar to that of old Stanley smoothing planes.

The two plane walls on the Stanley 57 are set at 90 degrees.

The purpose of this is so the pointed part of the cutter will always cut along the correct line when the two plane walls are resting on the respective edges of the work-piece (semi-circle); think of it like planing along a half pipe made from wood.

stanley core box plane 57

The plane had extensions plates which were each held in place by two very short rods, referred to as support arms. Each rod was secured by two holding screws. The rods were much shorter versions of those used with the Stanley 45, Stanley 46 and Stanley 55 multi planes.

The extension plates allow the plane to work larger semi-circular work pieces.

stanley core box plane 57

The number 57 plane had a 'V' shape cutter which protrudes through a 'V' shape mouth in the centre of the plane.

The blade was secured in place with the use of an elaborate knurled holding screw with an edge like a cog and an internal dome top.

These core box planes were often nickel plated, there are examples of core box planes with a japanned finish.

The cast of the early planes are marked 'Pat.3.10.96. The original blades are usually marked 'Stanley Rule & Level Co'.

Plane Construction

stanley 57 plane

Width (left side): 70mm (2 3/4 inches)

Width (right side): 70mm (2 3/4 inches)

Length Of Sole: 250mm (10 inches)

Extension Plate Width (left side): 66mm

Extension Plate Width (right side): 66mm

Extension Holding Rods Length: 44mm

Extension Holding Rods Diameter: 8mm

Front knob: wooden, usually Rosewood

Plane finish: grey plating

stanley 57 core box plane

Stanley 57 Plane Blade / Cutter

Width: 21mm (7/8 inch)

Blade Thickness: 2mm

Top Of Blade Shape: Oval, Rounded Corners

Blade Markings: Stanley Rule & Level Co

Plane Markings

"No 57 - PAT 3-10-96" - found on the corner edge of the face, between front knob and blade.

"Stanley" - found on the lever cap face.

"Stanley" - found on the centre of left extension plate.

"Stanley" - found on the centre of left extension plate.

Manufactured Dates

1896 - 1934> (Patent was issued in 1896)

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