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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.
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.
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.
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.
The 15 inch planer knife set is designed for 15 inch planers, so it matches cutterheads that use three 15 inch straight knives across the full cutting width.
The JWP15HO-K replacement knives are described for JET Planers, and the web description also notes compatibility with many other brand tools using similar 15 inch knife formats.
The JT9-708807 planer knives use high-speed steel construction, giving longer cutting life between sharpenings when used in typical jointer and planer operations.
These high-speed steel planer knives are hardened and tempered to 62-64 Rockwell, providing a defined hardness that resists wear and helps the cutting edge stay effective in service.
The precision-balanced planer knife set is matched so each knife runs smoothly in the cutterhead, which supports reduced vibration and helps produce quality cuts every time.
The planer knife set 3 piece contains three knives, matching a typical three-knife cutterhead so all positions can be fitted from the same matched set.
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.
Sold In: 1 Set
Quantity | Unit Price | Catalog | ||||
|---|---|---|---|---|---|---|
Sold in: 1 Each | JP722150 Mfr# JT9-722150 | Jet Tools 722150 JWP-15B 15" JET Straight Knife Planer 3HP 230V | ||||
Sold in: 1 Each | JP722155 Mfr# JT9-722155 | Jet Tools 722155 JWP-15BHH 15" JET Helical Cutterhead Planer 3HP 230V |