Centered on Performance: ER, TG, and DA Collets at Penn Tool Co.
Since 1968, Penn Tool Co. has been the foundational partner for machinists and manufacturers who understand that precision begins with a flawless grip. In the high-stakes world of CNC machining and manual milling, the interface between your spindle and your cutting tool is where quality is won or lost. Whether you are running a high-speed production line or a specialized tool and die shop, our selection of collets ER TG DA tooling provides the stability and concentricity needed to eliminate chatter and maximize tool life.
Carefully curated to meet the demands of modern industrial environments, our professional-grade and competitively priced workholding solutions keep your drills, end mills, and taps perfectly centered.
Versatile Workholding for Milling, Turning, and Drilling
Every machining application has unique torque and clearance requirements. Our inventory is structured to provide the specific clamping geometry your task demands.
As the most widely used system in the world, ER collets offer a massive collapse range and exceptional versatility. Our ER collet sets are the go-to choice for ER collets for milling, drilling, and tapping, providing a cost-effective way to hold a wide variety of tool shank diameters with a single chuck.
When your project requires maximum clamping force for heavy-duty cutting, TG collets are the industry standard. Known for their "Tight Grip," TG collets for turning and heavy milling provide superior stability for large-diameter tools and high-torque operations.
Ideal for lighter machining and close-quarter work, DA collets and DA collet chucks feature a unique dual-taper design. These are frequently used in drilling and tapping applications where a compact profile is necessary to reach tight geometries.
By partnering with trusted brands like Precise, GS Tooling, and TMS, we ensure every collet is manufactured from high-grade, hardened alloy steel to maintain accuracy over thousands of cycles.
Explore our broader Tooling and Accessories category for high-performance adapters, arbors, and machine attachments essential for any precision shop setup.
Trends in Precision Collet Technology
The landscape of toolholding is evolving, with a focus on smart manufacturing and ultra-fine surface finishes.
- High-Speed Balance: Modern CNC ER collets are now precision-balanced for speeds exceeding 25,000 RPM, reducing spindle wear and improving finish quality in 5-axis machining.
- Sealed Designs: A major trend in 2026 is the use of metallic-sealed collets for coolant-through applications, ensuring high-pressure lubricant reaches the cutting edge without leaking.
- Anti-Friction Coatings: Advanced P3 or chrome coatings on precision collets, ER, TG & DA are increasing clamping pressure by up to 20% while preventing the "freezing" of the collet in the nut.
- Digital Twin Integration: Many shops are now using digital profiles of their ER collet sets to simulate tool interference and runout in virtual environments before the first chip is cut.
By integrating these modern solutions, you ensure your equipment meets the demands of new-age high-performance alloys and rapid turnaround times.
Reliable Workholding: The Foundation of Every Flawless Cut
We are driven by the principle that a secure tool is the primary requirement for high-precision output. By outfitting your machine with premium ER collets, TG collets, or DA collets, you go beyond mere manufacturing, building a workflow defined by repeatability and technical excellence. Penn Tool Co. delivers the industrial-grade tooling capable of meeting the most demanding rigors of your job site.
