Deulen Tools

The Deulen Jointer Knives Sharpening Jig holds jointer knives at a precise, fixed bevel angle on a lapping plate, removing the inconsistency of freehand sharpening and producing a flat, straight edge ready for reinstallation.

Yes. The Deulen Lapping Plate provides the flat reference surface the jig rides on. Without a flat plate, the knife bevel will not be consistent across its full length.

Start with a lower grit to remove nicks and re-establish the bevel, then progress to finer grits to refine and polish the edge. The six-pack sandpaper refills for the Deulen lapping plate are sized to fit the plate correctly.

Sharpening frequency depends on the hardness of the wood being processed and the volume of material run. A common sign that knives need attention is burn marks, ripple patterns, or rough surfaces on jointed boards. Regular light maintenance extends time between full re-grinds.

The Deulen jig is designed for jointer knives. Planer knives may have different geometry or length. Check the product details on the Deulen Jointer Knives Sharpening Jig page or contact us to confirm compatibility with your specific planer knives.

Yes. All Deulen Tools products sold through Infinity Tools are backed by our quality guarantee. Reach out if you have any issues with your order.

Deulen Tools products ship from Infinity Tools under our standard fulfillment schedule. See delivery estimates and shipping rates on our shipping policies page.

The Infinity Tools learning blog covers machine maintenance, including knife care and sharpening practices that extend the life of jointer and planer tooling.

DMT diamond bench stones can be used to touch up jointer knife edges, though a dedicated jig like the Deulen system maintains a more consistent angle. Browse our DMT diamond sharpening tools for bench stone options.

Reach the Infinity Tools team through our contact page. We can help with product selection, compatibility questions, and order support.