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:Φ 150.00mm- Φ 750mm
Feed rate:0.15~0.25mm/r
Recommendation:precision hole finish
Application:general machining, volume production
Advantages: Flexibility, adjustable diameters, low cost
Supply: Wholesale or factory OEM supply


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


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