End Mill Holders

    Premium Precision 0.0001”
    • Runout taper to bore within 3 Microns (0.0001”) T.I.R.
    • Bore ground to H5 tolerance or better!
    Coolant Thru
    • Coolant Thru the Center
    • DIN AD+B Flange Coolant Standard on select sizes
    • Jet Slot Versions Available
    Dynamically Balanced
    • 30, 40 & HSK63A - G6.3 @ 20,000 RPM
    • 50 & HSK100A - G6.3 @ 15,000 RPM
    ISO AT3 Taper Tolerance
    • Tapers are ground better than AT3 for optimal T.I.R.

    Jet Blast Options

    Modify any of our End Mill, Shell Mill or Shrink Fit holders with Jet-Blast!

    Not only do we carry more standard projections than anyone else in the industry but now you can order any of our holders with Jet-Blast. We have invested in the equipment to install coolant ports in any of our stock catalog holders.

    The 1/2 Moon Project

    Years ago we outsourced our EDM work and all Jet-Blast was 1/2 moon. That source went out of business and we purchased machines and followed the machine manufacturer's recommendations. Many customers preferred the 1/2 moon

    We have changed processes and now can offer 1/2 moon standard on most holders.


    Full diameter coolant ports are available on demand. Please specify when ordering.

    • Any End Mill, Shrink or Shell Mill Holder with a 10" projection or shorter
    • Altered in Chicago for quick turn around, many same day!
    • Expedited Service Available
    Multi-Port Jet Option
    Define your coolant flow with increased volume

    Adding additional ports will give the holder a shower head effect, for customers with high volume systems.

    Fit the holder to your machine's coolant system!
    • Need to increase pressure?
    • Need greater volume of coolant?

    Retention knobs all have different coolant holes. Some as large as 0.44" and as small as 0.07". Jet-Blast can be fit to your machine's coolant system to achieve the best possible coolant flow and pressure.

ER Collet Chuck
Available Shanks
BT30 BT30-B BT40 BT40-B BT50 CAT40 CAT40-B CAT50 CAT50-B HSK63A HSK100A Straight Shank