Square-Insert-Knife Spiral Cutter Head For Planer

Information Of Production

Item Name

Square Insert Knife Spiral Cutterhead for heavy cutting

Square Insert Knife Spiral Cutterhead


Heavy Cutting

Normal Pre-Planing

Noise level

Extremely low

Extremely low

Cutterhead’s Material

High Tensile Steel


100 – 200 mm

Cutting Length

450 – 1320 mm

Insert Knife

15 mm x 15 mm x 2.5 mm (4 edges)

14 mm x 14 mm x 2 mm (4 edges)

Cutting Angle

Spiral Angle

Suitable Machine

Planer, Two Side Planer and Jointer

Cutting Material

Solid Wood or Man-Made Material (plywood, MDF etc.)

Dynamically Balanced

6,000 or 8,000 rpm

* All the Square Insert Knife Spiral Cutterhead are customized, please e-mail us for inquiring or ordering.


1. All Square Insert Knife Spiral Cutterheads are made by High Tensile Steel that can maintain the precision long-term. 

2. Spiral-structure-design can substantially enhance efficiency.  

3.Placing insert knife work is easier. Just put the square insert knife into the insert spot and bolt it with a screw. You don’t need to use any position tool.

4. LR-Tool’s special spiral step-shape grooves have remarkably sawdust-throwing ability that can avoid workpice’s surface crashed by thrown sawdust. Moreover, the special grooves can significantly reduce noise.

5. Comparing with the large sawdust (cutting from the straight cutting angle cutterhead), the smaller sawdust (cutting form spiral Cutterhead) make dust collection equipment working better.

6. Because spiral design, the cutting resistance evenly distribute into small insert knife.  This light cutting way can prevent tear-out problem, accelerate the feed speed and reduce spindle and bearing’s consumption.

7. The square insert knives of 14 mm x 14 mm x 2.0 mm (4 edges) are suitable for pre-planing.

8. The square insert knives of 15 mm x 15 mm x 2.5 (4 edges)  mm are suitable for heavy cutting.


9. If an insert knife nicked, just replace it with little cost.


Insert Knife

Depending on workpiece’s material, LR Tool provide 3 kinds of material insert knife. first is KCR08 for normal hardwood. Next is WFO5 that performance is better than KCR08. The last is SMG02, suitable for extremely hard or man‐made material like plywood or MDF.



14 mm x 14 mm x 2.0 mm (30-degree bevel)

Tungsten Carbide (kcr08)

14 mm x 14 mm x 2.0 mm (30-degree bevel)

Tungsten Carbide (smg02)

15 mm x 15 mm x 2.5 mm (37-degree bevel)

Tungsten Carbide (kcr08)

15 mm x 15 mm x 2.5 mm (37-degree bevel)

Tungsten Carbide (wf05)

15 mm x 15 mm x 2.5 mm (37-degree bevel)

Tungsten Carbide (smg02)