THPL-CBN End Mill Series

CBN Lapping Radius End Mills

CBN Lapping Radius End Mills

Our CBN lapping radius end mills are intended exclusively for lapping. Used for the superfinishing process, they ensure high precision and a surprisingly shiny surface finish. Although they are intended exclusively for lapping, they ensure the same high-precision machining as standard radius end mills, with a diameter accuracy of 0µm to -3µm and a radius accuracy of ±2μm.


  • Able to improve the surface quality in the finishing process
  • High-precision machining with a diameter accuracy of 0µm to -3µm and a radius accuracy of ±2μm
  • Longer life-span than that of carbide end mills, which marks the shift from the age of carbide end mills to the age of CBN end mills
  • High quality and low prices
  • Availability of customization
Code No.BladeTypeDiameterCorner REffective lengthBlade lengthNeck taper angleShank diameterTotal length
TNWR3003020011 2 H3.0R0.3 3.0 0.3 5.0 2.0 15° 6 50
TNWR3002020011 H3.0R0.2 0.2
TNWR3001020011 H3.0R0.1 0.1
TNWR2003020011 2 H2.0R0.3 2.0 0.3 5.0 2.0 15° 4 50
TNWR2002020011 H2.0R0.2 0.2
TNWR2001020011 H2.0R0.1 0.1
TNWR1503020011 2 H1.5R0.3 1.5 0.3 3.0 1.5 15° 4 50
TNWR1502020011 H1.5R0.2 0.2
TNWR1501020011 H1.5R0.1 0.1
TNWR1003020011 2 H1.0R0.3 1.0 0.3 2.2 1.2 15° 4 50
TNWR1002020011 H1.0R0.2 0.2
TNWR1001020011 H1.0R0.1 0.1
TNWR0602020011 2 H0.6R0.2 0.6 0.2 1.7 0.7 15° 4 50
TNWR0601020011 H0.6R0.1 0.1
TNWR0501020011 2 H0.5R0.1 0.5 0.1 1.5 0.5 15° 4 50
TNWR0401020011 2 H0.4R0.1 0.4 0.1 1.35 0.4 15° 4 50
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Features of Our End Mills

Feature 1

High Precision and Long Life-span
Our CBN end mill enables high-precision processing with a long life-span. With the industry's highest level of precision, our CBN end mill enables various high-precision processing with a long life-span.

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Feature 2

Regrinding Service for CBN End Mill and Custom-Made Products
By utilizing re-grinding it is possible to drastically reduce the total tool cost. We also offer custom-made products desired by customers.

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Feature 3

Reduction of Man-Hours Enabled by Multiple Blades
By adopting multiple blades, we contribute to reduction of man-hours.Our CBN radius end mill has a lineup of 3 to 6 blades.

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Feature 4

CBN End Mills Intended Exclusively for Lapping
By using a combination of our standard CBN end mill and CBN end mill exclusively for lapping, it is possible to obtain surface quality with high accuracy and gloss.

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