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CAT40 1/8 x 3.0" Taper End Mill Tool Holder

SKU
202-7434
$61.95
In stock

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Resources

Catalog Page 219 Tegara CatalogCalifornia Proposition 65 Warning
Downloads
CAT40 EM .125 - 3.0T.dwg
CAT40 EM .125 - 3.0T.dxf
CAT40 EM .125 - 3.0T.pdf
CAT40 EM .125 - 3.0T.step
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Details

More Information
Mfg SKU #202-7434
Tool Holder CategoryEnd Mill Holder
BrandTegara
shank sizeCAT40
Bore Diameter1/8
projection length3
end mill holder stylestandard
max rpm balanced toG2.5 20000
TIR (inch)0.0001
drawbar thread size5/8x11UNC
Stop Screw Thread Size1/4-28 UNF
Nose Diameter0.72
Dual Contact Tool HolderNo
Coolant ThroughYes

Design

shars cat40 tool holder

The Devil's In The Details

When you aspire to create one of the most competitive tool holders on the market, the details count. We invest heavily in extensive automation manufacturing and top of the line Mazak and grinding machines while pouring our heart and soul into bringing the tool to life. While not satisfied with just being good, so through customer data and rigorous testing, our R&D team are able to blend over 40 years of manufacturing know-how and real-world feedback to improve the tool holder's design and performance.

shars cat40 tool holder

Start to Finish

We optimize our process for both efficiency and accuracy by utilizing Kawasaki robotic arms to load and unload bar stock into the Mazak multi-tasking machine centers. We use SCM420 alloy steel to lay the foundation and case harden to RC 57-59 with a core of RC 34-39 to provide good core strength and maximize wear life. The core creates a dampening effect which reduces vibration in high speed milling to improve surface finish. The AT3 or better taper accuracy ensures 80% or better taper contact with spindle and using Stotz Air/Electronic Gaging for inspection on the taper. We precision grind the internal bore surface to <.0002" TIR and all bores are ground on a CNC grinder to ensure close run-out tolerance and evenly contact between the collet and the bore pocket. We use Haimer laser balancing machines to deliver a tool that can operate flawlessly at 20000 RPM and Mitutoyo or Mahr indicators to check the run out.

Craftmanship

  • shars cat40 tool holder

    AT3 or Better

    Taper ground to AT3 or better ensures 80% or more contact with spindle to reduce harmonics and improve runout tolerance

  • shars cat40 tool holder

    Pilot Contact

    Inside bore are precision turned to engage a better contact with retention knob's pilot to increase rigidity

  • 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

    CAT40

  • Bore Diameter

    1/8"

  • Projection Length

    3.0"

  • Bore Tolerance

    H6

  • TIR (at nose face)

    < 0.0001"

  • Max Balanced To

    G2.5 20,000 RPM

  • Coolant Type

    Thru Spindle

  • Rear Thread Size

    5/8-11

  • Nose Diameter

    0.72"

Spotlight

  • Dynamic Balancing

    Tool holder is balanced to G2.5 20,000 RPM on a HAIMER Tool Dynamic Balancing System from Germany.  Balanced tool holder minimizes the centrifugal forces which minimize the stress on spindle bearing, minimize vibration and maximize the cutting tool's life cycle and greatly improve surface finish. 

  • Pre-Balance Design

    Unique design feature in the extension nose to minimize the off-balance nature of CAT 40 taper specification.  A wall is machined around the center hole to compensate the weight of the metal chips lost from forming this spherical hole.  And when the holder is placed into the Haimer balance machine, less holes would need to be drilled in the v groove of the flange to protect the rigidity of the tool holder. Evenly weight distribution will minimize centrifugal force in high speed spinning and thus maximize the holder's ability to hold the cutting tool concentric to spindle rotation.

  • 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.

  • CAT40 1/2" End Mill Tool Holder in Action

    Cutting Tool: Gorilla Mill 1/2" 3 Flute Silverback Knuckle Dragger Series (SKU# 422-3122)

    Workpiece Material: 6160 Aluminum

    Machine: CNC 3-axis machining center

    RPM: 15000 ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎IPT: 0.005

    SFM: 1963 ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎DOC: 1.0

    IPM: 225


  • Each holder comes with a lab certificate on its balancing data
  • Flange and V-groove are precision ground to ensure reliable tool change
  • Spindle Thru coolant capability

What’s Included

What's Included

    • Balance report
    • End mill locking screw with 1/4-28 UNF thread

Reviews

Catalog