Clifton 420 – Shoulder Plane

The Clifton 420 is a shoulder planer designed for high-precision work on joints and recesses. Its longer body offers greater stability during cutting, allowing for precise adjustment of joint shoulders and surfaces.

This tool is particularly useful for adjusting tenons, joints, and recesses , ensuring flat and clean surfaces in fine woodworking.

Manufactured in Sheffield by Thomas Flinn & Co. under the Clifton brand, it adheres to the high quality standards associated with Clifton tools.

The 420 model was also featured in Good Woodworking Magazine , where it received 5 out of 5 stars in a comparative review of various shoulder planers.

Construction

The body is made of high-quality gray cast iron, carefully machined, with precision-ground sole and sides to ensure stability and cutting accuracy.

The lever arm is made of bronze and fits firmly into the plane body to ensure a secure hold of the iron.

The iron rests on machined surfaces on the planer body and can be precisely adjusted using an adjustment screw, allowing fine control of the cutting depth.

Technical specifications

Type: Shoulder planer for precision work
– Width of the iron: 19 mm (3/4″)
Blade steel: oil-hardened tool steel
Hardness: 59–61 HRC
– Wire angle: 25° primary / 30° secondary
Length: 200 mm (8″)
– Approximate weight: 1.1 kg
– Body made of precision-machined gray cast iron
– Lever arm in bronze
– Made in Sheffield, England