Large Diameter Boring Tools

The bridge type double-edge boring tool is composed of basic tool handle, extension bridge, rough boring head, fine boring head and counterweight block. The ISO standard inserts are used for rough boring and semi-fine boring of large parts.

  • Diameter:Φ00mm- Φ 750mm
  • Vc:275-500m/min
  • Feed rate:15~0.25mm/r
  • Recommendation:precision hole finish
  • Application:general machining, volume production
  • Advantages: Flexibility, adjustable diameters, low cost
  • Supply: Wholesale or factory OEM supply
  • Seller’s shipping method(sample):DHL
    Estimated delivery: 2 weeks
    Estimated shipping Fee: $10 to $30 for 10 pieces
    Shipping fee calculation (download PDF), or contact us for quotation


Boring is the ideal process for achieving fine surface finishes and tight tolerances. With same tools, a range of diameters can be bored. It’s more flexible and cost efficient than reaming and other hole finish process. Floating chucks are recommended for boring.

Inquiry CodeItemsFinishHole Diameter
D (mm)
Dia. stroke
S (mm)
Adjustable dia.
AD (mm)
BR-1801Twin edgeSemi finish25.00~235.002~300.01
BR-1802Single edgeFinish25.00~150.002~100.002~0.005
BR-1803Large DiameterSemi finish150.00~750.002~1000.01

Custom, CNC production, Measure, Inspection

Extensive CNC Softwares

*Milling,turning,drilling and more
*Parametric programming

grinding wheel

Precise Grinding

*In-process dressing
*Branded carbide rods

CNC grinding program

CNC program library

*Repeatability and Consistancy
*Programming Efficiency

Presetting and Measuring

*Zoller and PG1000
*Trackable calibration

tool inspection


*Dedicated inspector
*Trackable inspection data


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  • To receive a correct replacement or full credit, kindly inform us within 14 days of receipt, in case the item you received is faulty. In the case of returned goods that are not defective, there will be a 20% return handling fee deducted from the original purchase price. Please ensure that the returned goods reach us within 14 days of the original purchase date, otherwise no credit will be issued. Contact us for more details in Return and Refund policies. If you decide to return and apply for refund, please download and fill in the Return Form, and attached the file to:

We use DHL global serive to deliver packages efficiently. Here is the Shipping Instruction and Shipping Rate at which you can simply estimate the shipping cost, or contact us for up-to-date calculation.