Sheartak High Precision Boring Heads Skip to content
Tel:+1-519-880-8181 International, Toll- Free (Canada & USA) 1-877-417-4327
Tel:+1-519-880-8181 International, Toll- Free (Canada & USA) 1-877-417-4327

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Precision Boring Head

Availability:
Out of stock
Availability:
Out of stock
Availability:
Out of stock
Availability:
Out of stock
Availability:
Out of stock
Availability:
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Availability:
Out of stock
Availability:
Out of stock
Availability:
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Out of stock
Availability:
Out of stock
Availability:
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Availability:
Out of stock
SKU 437-2341
Sold out
Original price $120.00 - Original price $150.00
Original price
$120.00
$120.00 - $150.00
Current price $120.00
Optional Shank Size: No Shank
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Cancellation policy

Cancel for any reason at any time until your order shipped. Please be aware that banks charge for each payment transaction, so we will deduct these fees from the refunded amount. Once your order has shipped, you may return your order. For details, please review our Returns and Cancellations policies. Special order items may not be eligible for cancellation.

Return Policy

Most items can be returned within 30 days of receipt for a refund of the product cost less return shipping. Shipping, duties, and taxes are not refundable. For details, please review our Returns and Cancellations policies.

International Shipping

The product price and shipping and handling cost do not include import duties, taxes, or brokerage fees. As the transportation fee for your order is the only fee we charge, it is the buyer's responsibility to pay for these charges. We recommend that you contact your country's customs office or visit their website to determine if there will be any additional costs.

The Harmonized Tariff Schedule (HS code) for spiral cutterheads and other woodworking tools is 8466.92.50.10.

Features:

  • This boring head is used to enlarge existing holes or create new ones with a high degree of accuracy and precision.
  • It is typically used in milling machines.
  • Includes an optional shank for seamless connection with the boring head.
  • Max. boring diameter: 160mm.
  • Boring bar hole size: 18mm.
  • Fine feed per graduation: 0.02mm.
  • Max. stroke of slide block: 25mm.

Order No. 437-2341

Optional Shanks:

Order No. Shank Size Order No. Shank Size
437-2345 R8-7/16”-20UNF 437-2353 MT4 tang
437-2346 MT3xM12 437-2354 MT5 tang
437-2347 MT3x1/2”-13UNC 437-2355 ISO30xM12
437-2348 MT4xM16 437-2356 ISO30x1/2”-12UNC
437-2349 MT4x5/8”-11UNC 437-2357 ISO40xM16
437-2350 MT5xM20 437-2358 ISO40x5/8”-11UNC
437-2351 MT5x3/4”-10UNC 437-2359 ISO50xM24
437-2352 MT3 tang 437-2360 ISO50x1”-8UNC

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.