THPL-CBN End Mill Series

CBN Ball End Mills

CBN Ball End Mills

Our CBN ball end mills feature high precision, a long life-span, low prices, and the availability of a regrinding service. The lineup is rich in variety, ranging from R0.05 to R1.5 in diameter. They also boast ±3μm high precision for spherical finishing with a cut length of 640m.


  • 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.BladeTypeDiameterBall REffective lengthBlade lengthNeck taper angleShank diameterTotal length
TNWB3001520000 2 R1.5BALL 3.0 1.5 5.0 2.0 15° 6 50
TNWB2001020000 R1.0BALL 2.0 1.0 5.0 2.0 4
TNWB1507520000 R0.75BALL 1.5 0.75 3.0 1.5
TNWB1000520000 R0.5BALL 1.0 0.5 2.2 1.2
TNWB0600320000 R0.3BALL 0.6 0.3 1.7 0.7
TNWB0400220000 R0.2BALL 0.4 0.2 1.35 0.4
TNWB0400220500 0.5 0.3
TNWB0200120000 R0.1BALL 0.2 0.1 0.5 0.3
TNWB0100520000 R0.05BALL 0.1 0.05 0.2 0.07
For inquiries about products, click here.
Information request, purchase, various consultations

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.

Find out more.

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.

Find out more.

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.

Find out more.

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.

Find out more.

Product Case

  • Finger Print Sensors

    Introduce our manfufacturing technology used for finger print sensors.

  • Head-up Display

    Introduce ultra precision element technologies that support the manufacturing of high quality and high precision optical parts used in head up displays.

  • Automotive Electronic Devices

    Introduces our molding technologies andequipment, which improves the reliability of ECUs and various automotive electronic devices.

  • Floating image technology

    Introducing the floating image lens and various application examples based on our ultra-precision mold processing technology, EF technology, and injection molding technology.

Relevant Information