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Mfg SKU #202-7669
Tool Holder CategoryEnd Mill Holder
BrandTegara
shank sizeBT30
Bore Diameter1/2
projection length2.75
end mill holder stylestandard
max rpm balanced toG2.5 20000
TIR (inch)0.0002
drawbar thread sizeM12x1.75
Nose Diameter1.375
Dual Contact Tool HolderYes

Design

Craftmanship

  • shars bt30 dual contact tool holder

    Mirror Finished

    Taper ground to AT3 or better specification ensures 80% or more contact with spindle to reduce harmonics, improve runout tolerance and deliver consistence performance

  • shars bt30 dual contact  tool holder

    Flange Contact

    Precision mill finished from multi-tasking Mazak machine on the flange face to eliminate the 1/8" gap between flange and spindle nose to minimize vibration

  • shars cat40 tool holder

    Taper End Face

    Precision turning surface finish provide perpendicular contact with the flange of retention knob to increase rigidity

Tech Specification

  • Taper Size

    BT30

  • Bore Diameter

    1/2"

  • Projection Length

    2.75"

  • Bore Tolerance

    H6

  • TIR (at nose face)

    < 0.0001"

  • Max Balanced To

    G2.5 20,000 RPM

  • Coolant Type

    Thru Spindle

  • Rear Thread Size

    M12x1.75

  • Nose Diameter

    1.375"

Spotlight

  • Dual Contact



    With simultaneous contact on taper and flange face between the spindle and tool holder, dual contact tooling eliminates the 1/8” gap between the flange face and the spindle nose to increase rigidity, minimize vibration, extend cutting tool tool life, and greatly improve workpiece surface finish at aggressive speed & feed

  • DONE IN ONE



    By utilizing DONE IN ONE capability from Mazak Integrex machine with a second turning spindle, all processes from raw bar stock material to final machining in just one machine to improve machining accuracy and streamline production output.

  • Mirror Finish



    To achieve AT3 or better taper contact as an industry standard, our taper surface are precision ground on Shigiya CNC grinder from Japan. We are not satisfied with just meeting the industry standard, the surface roughness on the taper is maintained to mirror finish.

  • Flange and V-groove are precision ground to ensure reliable tool change
  • Spindle Thru coolant capability
  • SHARS Dual Contact tool holder can only be used on machine center with dual contact spindle
  • Compatible with BIG-PLUS ® spindles.
  • *BIG-PLUS® is a trademark of Daishowa Seiki Kabushiki Kaisha; Big Daishowa Seiki Co., Ltd., Corp. 
    Compatible with BIG-PLUS® spindles, but not licensed.

What’s Included

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