Shrink Fit Holders

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

New! Slim Nose Shrink Holders

Slim nose design for additional clearance. Ideal for 5 axis work.

3 Degree Nose Angle
Reduced nose wall thickness for a smaller profile.
0.0001" (3 Micron) TIR
True Dynamic Balanced for G2.5 @ 25,000 RPM or > 1gmm

Available Shanks Below

Pluggable X Jet Blast, Now Available in 130mm in Select Shanks!

New redesigned with angled coolant holes that are plugged from the factory. The cross connecting hole in the holder intersects the bottom of the shrink bore to prevent cutters from cutting off coolant flow.

Angle Coolant Holes
Pluggable, tapped with set screws installed for coolant thru the tool or around the tool
Cross holes act as a channel to allow coolant flow even if the holder is against the bottom of the bore
True Dynamic Balanced for G2.5 @ 25,000 RPM or > 1gmm

All pluggable jet blast holders end with "X" on the part number. The taper links below are for X style only.

As standard inventory is used up, shrink holders are being replaced with X style holders. Cannot find what you are looking for? Contact our customer service department.

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.

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.

Slim Nose Extensions

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