Upgrade your Toolex 20" Planer (Model CT-508) with a premium Sheartak spiral cutterhead designed for superior surface finish, quieter operation, and long-lasting performance. This cutterhead comes fully loaded with high-precision carbide inserts arranged on 5 spirals, plus extra inserts and screws for future maintenance.
Premium Components Included
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Full Set of Carbide Inserts Installed: Comes factory-equipped with 100 high-grade carbide inserts for smooth and consistent cutting.
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Extra Spare Parts: Includes 5 additional carbide inserts and 5 Torx screws for easy replacements.
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Japan-Made NSK Bearings:
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TC-Type Gearbox Oil Seal: Prevents oil leakage and ensures smooth gearbox operation.
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Fast, Reliable Shipping: Orders ship via Canada Post, USPS, or UPS.
Why Sheartak Cutterheads Perform Better
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More Inserts = Longer Life: Sheartak installs 100 carbide inserts on this cutterhead—more than comparable units with 75 inserts on 5 spirals or 68 inserts on 4 spirals. More inserts share the cutting load, extending tool life and improving efficiency.
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Superior Surface Finish: Inserts are positioned at a shear angle, producing a clean, glass-like finish on hardwoods, softwoods, and figured grain.
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4-Sided Carbide Inserts: Each cutter has four rotatable cutting edges—simply rotate 90° for a fresh edge. No sharpening required.
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Extremely Long-Lasting: Carbide stays sharp up to 50× longer than HSS knives.
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Better Dust Extraction: Creates shorter, thinner chips for easier collection and reduced clogging.
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Quiet Operation: Spiral shearing action reduces noise significantly compared to straight knives.
1-Year Warranty
All Sheartak cutterheads come with a 1-year warranty against manufacturing defects. (Consumables not included.)
Specifications
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Cutterblock Material: AISI 5140 high tensile strength alloy steel
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Insert Material: Grade C3++ tungsten carbide
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Carbide Insert Size: 15 × 15 × 2.5 mm, R150
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Number of Inserts: 100
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Number of Spirals: 5
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Wrench: Torx T25
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Screw Size: 10#-32 TPI
Kit Includes
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(1) Full set of carbide inserts (installed)
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(1) Set of NSK sealed bearings
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(1) TC-type oil seal
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(1) T-25 T-handle wrench
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(5) Spare carbide inserts
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(5) Torx screws
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.
