Spiral Cutterhead for Grizzly G7213Z 24" Planer (Includes Full Set of Carbide Inserts)
Upgrade your Grizzly G7213Z planer with a spiral cutterhead designed for precision, durability, and ease of use.
The stock cutterhead relies on four straight blades that require constant sharpening and careful alignment—an inconvenient and time-consuming process. By switching to a spiral cutterhead, you’ll experience major improvements in performance and efficiency.
Why Choose a Spiral Cutterhead?
Flawless Finish Without Tear-Out
Each insert is positioned at a slight angle, creating a true shear cut. The staggered cutting pattern virtually eliminates tear-out and produces a silky-smooth surface, even on tough figured woods.
Quieter Operation
Because only a few inserts engage the wood at once, cutting noise is dramatically reduced compared to straight blades.
Longer Tool Life
The 15x15x2.5mm inserts are made from premium sintered tungsten carbide, lasting more than 10 times longer than high-speed steel. Each insert has four sharp edges—simply rotate to a new edge when needed.
Simple, Fast Maintenance
Inserts are precision-ground to ±0.01mm (±0.0004") and completely interchangeable. To replace an edge, just loosen the screw, turn the insert 90°, and tighten. Maintenance takes only minutes.
Better Dust Extraction
The spiral cutting action generates smaller chips that are easier to collect, improving dust control in your shop.
Cost-Effective Over Time
With longer-lasting inserts, reduced sanding, and no sharpening required, this cutterhead quickly pays for itself.
Kit Includes:
Do I need to replace the original bearings?
If the bearings in your machine are in good condition, they can be reused by carefully removing them with a bearing or pulley puller. However, if the bearings are tightly pressed onto the shaft, removal may cause damage. To minimize this risk, we recommend replacing old bearings with our greased and sealed bearings, designed for long-lasting performance. For a smooth upgrade, we suggest adding the bearings to your shopping cart before completing your purchase.
We provide premium bearings from NSK, SKF, NTN, FAG, Timken. They are renowned for their high quality and performance, designed to provide durability and reliability in various applications
If you add the bearings to your order, we will preinstall them for you when premounting is possible, saving you the hassle of doing it yourself.
Do I need to to Add a Few Boxes of Carbide Inserts
We provide 5 carbide inserts and 5 screws as spare parts. However, many of our customers choose to purchase additional boxes, as the shipping costs for separate purchases can make it less economical.
Do I need a Torque Wrench?
To securely lock the carbide inserts, we recommend applying a torque of 48 to 52 Pound-Inches (or 5.42 to 5.88 Newton-Meters). (Note: 1 Newton-Meter is equal to 8.851 Pound-Inches, and 1 Pound-Inch is approximately 0.113 Newton-Meters.) It is crucial not to apply excessive torque, as this could cause the carbide inserts to crack or explode. On the other hand, using too little torque may result in the inserts not being properly secured, which could lead to cracks, shattering, or uneven height on the cutter block, causing ridges or lines on the board.
If one person is responsible for maintaining the machine, they can typically apply the same torque consistently without a torque wrench. However, when multiple people are involved in machine maintenance, ensuring uniform torque application can be challenging. For consistency and peace of mind, we recommend using a torque wrench.
What kind of steel the cutter block is made of?
The cutter block is constructed using GB/T 40Cr, a structural alloy steel of the same caliber as ASTM grade 5140, AISI 5140, SAE 5140, DIN 41Cr4, BS 41Cr4, JIS SCr440, and EN 41Cr4.The primary components of this steel are as follows: carbon (C) at a range of 0.37-0.44%, silicon (Si) between 0.17-0.37%, manganese (Mn) within 0.50-0.80%, and chromium (Cr) from 0.80-1.10%.
In terms of physical properties, this steel exhibits a tensile strength range of 115-234σb/MPa, a yield strength of 2σ 0.2 ≥/MPa, and an elongation capacity of 65 δ5≥ (%). It also has a HBS range of 123-321 and a HRC rating of 30.
This alloy steel is frequently utilized in low to moderately stressed components for machines, engines, and vehicles.
