PAC Precision Tools USA supplies tool holders, ER collets and machining accessories for CNC machine tools. Explore CNC tool holders for your machine and application, compare product information, or contact our team for tooling selection support.
Explore selected tooling products. Open a product to review its part number, dimensions, available options and ordering information.
Choose CNC tool holders by your machine’s spindle interface, cutting-tool shank, required reach and machining operation. PAC’s range includes ER collet holders, end mill holders, hydraulic holders, shrink-fit holders, face mill holders and tapping holders. Review the selected product’s drawing and specifications before ordering.
An ER collet grips a compatible cutting-tool shank within the specified range of its collet system. Before buying, confirm the ER series, shank diameter, holder and nut compatibility, and any coolant requirements. Browse PAC’s ER collets and supporting accessories or contact our team with your application details.
Explore holder styles for milling, drilling and rigid tapping setups.
ER Collet Holders
Explore our practical CNC tooling guides, CNC machining insights, tooling comparisons, and technical resources to help you make informed decisions for precision machining applications.
An ER collet order can look simple: choose a series, select a bore size and add the quantity. The difficult part is making sure the ordered item matches the holder, tool shank and machining requirement already on your shop floor....
Choosing the right CNC tool holder begins with the machine spindle—not simply the price, appearance, or popularity of a holder. CAT40, BT40, and HSK are three widely used CNC spindle interface families. Although they perform the same fundamental function—connecting cutting...
CAT40 Tool Holders: How to Choose the Right Holder for Your CNC Machine A CAT40 tool holder can fit the right spindle yet still be wrong for the operation. A holder selected without checking the cutting-tool shank, retention knob, projection...
Why CNC Tool Holders Lose Clamping Accuracy Over Time The first warning may be a change in finish—not a broken tool A CNC operator may notice chatter, inconsistent dimensions, poor surface finish or a tool that does not repeat the...
Finding the right CNC tooling supplier starts with two questions: does the supplier offer the correct tooling for your machine, and can it help you confirm the specifications before you order? If you are searching for “where to buy high-quality...
Tooling selection depends on the machine, operation, workpiece material and required result. Compare holder, collet and accessory specifications for your application, then contact PAC if you need selection support.
Ultra-precision tool holding and collet systems engineered for machining titanium, Inconel, and aerostructures with stringent surface finish tolerances.
High-volume, repeatable CNC tooling solutions for engine components, transmission housings, EV battery trays, and brake systems.
Versatile collet chucks, retention knobs, and bushings that maximize spindle uptime, reduce setup changeover, and maintain sub-micron accuracy.
Micro-machining and high-concentricity collet systems for orthopedic implants, surgical instruments, and biocompatible metals.
Heavy-duty rigidity, high vibration damping, and extreme clamping force for hard milling of injection molds, stamping dies, and tool steel.
High-torque live and dead centers, heavy retention knobs, and large-bore collet systems for oil & gas, energy, and heavy equipment.
PAC’s published range covers tooling and accessories used with CNC machines, including tool holders, collets, bushings, retention knobs, centers and related accessories.
Confirm your machine’s spindle interface, cutting-tool shank, required reach and machining operation. Check the selected holder’s specifications and compatibility before ordering.
Confirm the ER series, cutting-tool shank diameter, stated clamping range, holder and nut compatibility, and coolant requirements.
Browse the ER Collets collection and individual product pages. Review available catalogs or send PAC the part number and application details if information is unclear.
Send your machine model, spindle interface, current part number and machining requirements. Our team can review your inquiry and help you find the product information needed before ordering.
