Genuine Swiss TERSA M+ (M42+) Reversible Planer Knives – Various Lengths

Choose maximum wear resistance and premium cutting performance with genuine Swiss-made TERSA M+ reversible planer knives.

Designed for professional planing applications, the TERSA quick-change system allows knives to be replaced quickly, safely and easily, helping to minimise machine downtime and eliminate the need for complicated blade adjustment.

TERSА knives are designed for use with compatible TERSA cutterblocks and automatically position themselves correctly during operation. When the cutting edge eventually becomes worn, simply release the knife, reverse it or replace it with a new one.

Genuine Swiss Precision

TERSА is renowned for its precision manufacturing, blade hardening and sharpening technology. Every genuine TERSA knife is engineered for:

• Exceptional accuracy

• Excellent fit

• Strong wear resistance

• Consistent cutting performance

• Long working life

The precision-ground cutting edge and hard, wear-resistant surface help deliver the quality finish expected from a professional TERSA cutter system.

M+ TERSA Knives – Enhanced Wear Resistance

The TERSА M+ knife is an advanced HSS knife containing 8% cobalt, combined with a specially designed cutting angle.

This construction provides improved resistance to wear compared with standard HSS knives, making the M+ an excellent choice for more demanding applications and harder timber.

M+ TERSA knives are particularly suitable for hard woods with a closed cell structure.

Suitable timber includes:

• Maple

• Alder

• Birch

• Hickory

• Hornbeam

• Ash

For workshops machining harder timber on a regular basis, the M+ knife can provide a longer-lasting cutting edge and reduced blade change frequency.

Each knife is reversible, providing two usable cutting edges for improved value and extended working life.

Available in Various Lengths

Choose the required knife length from the dropdown menu.

Please check the dimensions of your existing knife or TERSA cutterblock before ordering to ensure compatibility.

Key Features

• Genuine Swiss-made TERSA quality

• Premium M+ / M42+ specification

• HSS construction with 8% cobalt

• Enhanced resistance to wear

• Special cutting angle for demanding applications

• Reversible knife with two cutting edges

• Fast, safe and easy blade replacement

• No manual blade adjustment required

• Precision hardened, ground and sharpened

• Ideal for harder, closed-cell timber

• Available in multiple lengths

Frequently Asked Questions

Q. What is the difference between TERSA HSS and M+ knives?
The standard HSS knife is the general-purpose option and is particularly suited to softer and more resinous woods. The M+ knife contains 8% cobalt and features a specialised cutting angle, providing improved wear resistance for harder timber.

Q. Are M+ knives better than standard HSS knives?
M+ knives offer greater wear resistance, particularly when machining harder woods. However, the best choice depends on the material you are machining.

Q. What woods are M+ TERSA knives suitable for?
They are particularly suited to harder woods with a closed cell structure, including maple, birch, hickory, hornbeam and ash.

Q. Are the knives reversible?
Yes. Each knife has two cutting edges. When one edge becomes worn, simply reverse the knife to use the second edge.

Q. Do the knives require manual adjustment after fitting?
No. The TERSA quick-change system is designed to eliminate the need for conventional knife setting and adjustment.

Q. How do I select the correct length?
Measure your existing TERSA knife or check your machine or cutterblock specification, then select the corresponding length from the dropdown menu.

Q. Are these compatible with all planer machines?
These knives are designed for use with compatible TERSA cutterblocks. Always check your existing knife dimensions and cutterblock compatibility before ordering.