15" Planer Knife 3 Set

15 Inch Planer Knife Set For Clean Cuts

15 inch planer knife set describes a matched set of three knives designed for 15 inch planers, so you can refresh the cutting head and restore consistent surface quality across the full width of your stock. The knives are identified as a 15 inch Planer Knife 3 Set, which means you get a full three-knife head covered in one changeover, keeping your planer cutting geometry balanced as designed. This set is made by JET Tools under part number JT9-708807, tying the knives directly to a recognized machinery brand for straightforward selection when you work with JET planers. The product is classified under Jointers/Planers, so it is intended specifically for thickness planers and similar machinery rather than general-purpose cutting. The SAP description JWP15HO-K REPLACEMENT KNIVES (3/SET) defines these as replacement knives, letting you restore cutting performance on an existing machine instead of changing the planer itself.

Key Planer Knife Details That Support Work

• The web description states that this is a 15 inch Planer Knife Set (3) for JET Planers, so the length and three-knife count align with typical 15 inch JET cutterheads, helping maintain proper coverage and cutting geometry across the full bed width.
• The same description notes compatibility with many other brand tools, which means the 15 inch format can fit additional planers beyond JET, giving shops flexibility when standardizing knife sizes across multiple machines.
• High-speed steel construction is specifically called out, providing a cutting edge that holds up longer between sharpenings, so you can plane more material before rotating or grinding the knives.
• The knives are described as hardened and tempered to 62-64 Rockwell, which sets a defined hardness range that resists wear in normal woodworking, helping keep edges true under repeat passes.
• Precision-balancing is mentioned in the description, so each knife is matched for weight and geometry, supporting smoother rotation in the cutterhead and more even cuts at the feed rate you choose.
• The description explains that precision-balancing ensures quality cuts every time, tying the balanced design directly to consistent surface finish and reducing the likelihood of chatter marks across a run.

Planer Knife Replacement Details For Setup

The designation JWP15HO-K REPLACEMENT KNIVES (3/SET) identifies this product as a direct replacement set, so you can change all three knives at once and keep the cutterhead balanced from knife to knife. Because the set is described as a 15 inch Planer Knife Set (3) for JET Planers, the knives are sized for 15 inch JET cutterheads, which supports straightforward alignment with existing knife pockets and gibs. High-speed steel construction works with standard planer knife setting practices, so when you set height relative to the outfeed or reference point, the steel is stable enough to hold that setting during tightening. The hardened and tempered 62-64 Rockwell rating keeps the cutting edge from deforming quickly under load, so once you dial in your knife height and projection, you can expect that setting to stay consistent over extended runs.

Using JWP15HO-K Replacement Knives In The Shop

Where This 15 Inch Planer Knife Set Fits

The SAP description JWP15HO-K REPLACEMENT KNIVES (3/SET) and the manufacturer part number JT9-708807 define this product as a matched collection of three knives intended for cutterheads that take three 15 inch knives, which is common on 15 inch thickness planers. The web description calls it a 15 inch Planer Knife Set (3) for JET Planers, so it is aligned with JET-branded 15 inch machines that use three straight knives in the head. Because the description notes compatibility with many other brand tools, these knives can also serve in other 15 inch planers designed for similar straight-knife interfaces, allowing a shop with mixed brands to rely on one style of knife across machines. The classification under Jointers/Planers places the product firmly in the machinery group that processes lumber faces and thickness, so its role is to cut and size boards in everyday woodworking workflows.

How Knife Construction Supports Repeatable Results

The web description specifies high-speed steel construction, so each knife maintains a sharp edge longer when cutting typical woodworking materials, which helps keep thickness and finish consistent from the first board through longer production runs. The knives are hardened and tempered to 62-64 Rockwell, giving them a defined hardness that resists rapid wear at the cutting edge, so the edge geometry you set during installation remains effective over time. Precision-balancing is also highlighted, meaning each knife is matched to work smoothly together in the cutterhead, which reduces vibration that could show up as ripples or chatter on the planed surface. Because the description states that precision-balancing ensures quality cuts every time, the balanced construction directly supports a smooth finish when feeding boards through at normal planer speeds, helping minimize secondary sanding on many jobs. As a JWP15HO-K replacement set, these knives let you restore the cutterhead to its intended performance envelope whenever the original knives dull or are resharpened beyond a practical length.

Common Questions About JET Tools Planer Knives

Selecting This Knife Set For Your Planer

The 15 inch Planer Knife 3 Set from JET Tools, identified as JWP15HO-K REPLACEMENT KNIVES (3/SET) and part number JT9-708807, gives you a matched trio of high-speed steel knives for 15 inch jointer and planer machinery. High-speed steel construction, hardened and tempered to 62-64 Rockwell, supports longer cutting life between sharpenings, reducing downtime in your shop. Precision-balancing that is described as ensuring quality cuts every time helps your cutterhead run smoothly for clean, consistent surfaces. When your existing straight knives reach the end of their service, this 15 inch planer knife set lets you restore performance with parts built for JET Planers and compatible 15 inch tools.