Shrink Fit Holders

  • Ultimate Precision: 0.0001” TIR Guaranteed @ Bore shrink fit tool holding
  • Long Lasting: Manufactured from ISO-40CrMoV5 Material, Heat Treated for Optimum Elasticity and Tool Life shrink fit
  • Powerful: Toleranced and Ground for 10,000 lbs of pull out force shrink fit
  • Performance Milling: Designed for Performance Milling with Neutral flute geometry, not designed for hi-helix applications shrink fit tool holding
  • Dynamically Balanced for G2.5 @ 25,000 RPM’s or >1gmm tool holding

Jet Blast Option

We at Pioneer have invested in an EDM Drilling machine which allow us to customize Jet-Blast coolant holes to your application. It comes down to coolant volume. Every Jet-Blast Holder or collet comes with 2 ports standard. Depending on style and type we have the ability of adding as many holes as your coolant volume can support without losing pressure. The goal is to create a reducing effect to the volume of coolant to maintain or increase pressure. This allows for increased chip evacuation and free cutting. shrink fit tool holding

Any standard Shrink can be modified from stock. Adding a “J” to the end of the part number will provide you with 2 coolant ports. Need additional ports? Add “J 4-Port” to the part number for additional ports (additional fees will apply).

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.

Jet-Blast Jet-Blast Jet-Blast
Slim Nose Extensions

Slim nose extensions are a great fit when wall clearance is cridical. Available in several different shanks and bores.
Specials available upon request.
Jet-Blast also available upon request.

SN Extension
Available Shanks
BT30-B BT40 CAT40 CAT40-B CAT50 HSK40E HSK63A HSK100A Straight Shank