RIDGID / planer

R4331 knife reference.

15 AMP CORDED 13 IN. THICKNESS CORDED PLANER

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YOUR MACHINE, AT A GLANCEReplacement evidence available

RIDGID R4331

Cutterhead type: straight knife
Knife count: 3
Cutter capacity (not knife length): 330.2 mm
Reversible knives: Yes

OEM / VERIFIED REPLACEMENT

AC20502 official compatibleLength: 330.2 mm

Check your original cutterhead and any production-date conditions before choosing a replacement.

PART NUMBERS & SPECIFICATIONS

OEM & verified replacements

AC20502 ↗

13 IN. THICKNESS PLANER REPLACEMENT BLADES (3-PACK)

official compatible

Part type: full width knife
Length: 330.2 mm
Material: HSS
Quantity per pack: 3
Reversible: Yes

Before you order

Confirm the complete model and the installed cutterhead. An aftermarket cutterhead conversion can require different consumables from the original machine.

TRACEABLE INFORMATION

Source evidence

powertools.ridgid.com

Tier 1 · normalized machine

powertools.ridgid.com

Tier 1 · explicit model part catalog

Sources document the listed facts. A source link alone does not establish fit for a different machine.

FROM THE WORKBENCH

A little knowledge.
A better fit.

How to find the right planer blades Why matching dimensions isn’t enough Straight knives or individual inserts?