Collis Tool Corporation, End Mill Holders - CV-flange tooling, meteric CV- flange tooling, milling chuck holders, hydraulic chucks

End Mill Holders - short projection, CV-flange tooling, meteric CV- flange tooling, milling chuck holders, hydraulic chucks
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End Mill Holders, AT3 certified, NMTB

NMTB

  • Precision Milling Machine Holders for Straight Shank End Mills.
    End Mills are securely held by one or two set screws.
End Mill Holders, AT3 certified, NMTB
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STYLE A
1-1/4" Shank

End Mill Holders, AT3 certified, rapid change adapters

Rapid-Change Adapters

The Master Holders listed below, right are for use with the Rapid-Change Adapters listed below, left. This eliminates the need to remove Master Holder from spindle when using different size end mills.

End Mill Holders, AT3 certified, rapid change adapters

STYLE A
2" Shank

End Mill Holders, AT3 certified, rapid change adapters

 End Mill Holders, AT3 certified, rapid change adapters
STYLE A
2" Shank

End Mill Holders, AT3 certified, rapid change master holders

 Rapid-Change Master Holders

End Mill Holders, AT3 certified, rapid change master holders
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End Mill Holders, AT3 certified, morse taper shanks

Morse Taper Shanks

  • Morse Taper End Mill Holders provide quick change capabilities with the use of end mill adapter shown on page 23.

End Mill Holders, AT3 certified, morse taper shanks
End Mill Holders, AT3 certified, keeper slots Keeper Slots
  • Some machines require a keeper slot to secure the end mill holder in the machine spindle. Collis provides this service upon request.
  • PLEASE TELL US:
  • 1. Width of Keeper slots
  • 2. A, B & C Dimensions of Spindle
End Mill Holders, AT3 certified, extensions Extensions

Straight shank tooling for extended length machining is less costly than purchasing custom holders. The outside diameter allows close cutting operations where space is limited.
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End Mill Holders, AT3 certified, cv flange extended length

CV-Flange Extended Length

  • Collis 40 and 50 CV-Flange Tooling is designed to give maximum rigidity and maximum reach. They are also available in custom projections.
  • Precision ground AT3
End Mill Holders, AT3 certified, cv flange extended length
Collis is the Only AT3 Certified Tool Holder Supplier in the U.S.A.

Collis, the only AT3 certified tool holder supplier in the USA

Tapers

  • Collis tapered tool holder shanks are manufactured in accordance with ASME B5.50 - 1994 (per ISO-1947).
  • Angle deviations are allowed only on the direction that increases the rate of taper.
  • The above charts illustrate the results of measurements taken on Collis manufactured tapered toolholder shanks. These represent typical manufacturing process output results.
  • Based upon the observed manufacturing process variation and the location of the process averages, the following process performance can be summarized:

Taper % of Toolholders Meeting (Cumulative %)

Actual Deviation from 3.5" per Foot

#40 AT-3 = 99.9% or better
#50 AT-3 = 99.9% or better

.000085"
.000109"

Typical Taper Fitment
ANSI B5.10 is a constant .001 inches/foot OR .000083 inches/inch.

Collis, Typical Taper Fitment
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Collis Tool Corporation, End Mill Holders - CV-flange tooling, meteric CV- flange tooling, milling chuck holders, hydraulic chucks
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