ER STEEL SEALED COLLETS | 210327SS
Specification
- US Domestic Shipping Only: We ship exclusively within the United States using UPS as our primary carrier.
- Processing Time: Orders are typically processed within 1–2 business days. Orders placed on weekends or holidays will be processed on the next business day.
- Delivery Times: Delivery times vary based on the shipping method and destination (estimates are provided at checkout). Please note that carrier delays (e.g., weather or unforeseen issues) are beyond our control.
- Costs & Methods: UPS Standard, Expedited, and Express methods are available. Shipping rates are calculated based on weight and destination at checkout.
- Tracking & Support: Tracking information will be emailed once shipped. For tracking issues, errors, or damaged/lost packages, contact us at sales@pactoolsusa.com or +1 262-282-2456.
Accuracy
PAC Precision Tools ER Steel Sealed Collets are designed for precise tool clamping with built-in seals, ensuring effective use in through-coolant machining applications. The collets ensure precise concentricity, preventing coolant leakage, making them suitable for high-pressure coolant machining applications in CNC machining centers.
Precision-engineered with premium hardened spring steel, PAC Precision Tools ER Steel Sealed Collets from a reputable supplier and distributor of CNC tools ensure uniform clamping pressure, tool stability, and long tool life.
- Standard Precision : -0.0006" (15 Micron) @4D
- High Precision : -0.0004" (10 Micron) @4D
- Ultra Precision : -0.0002" (5 Micron) @4D
Dimensions

| Collet Series | A | B |
|---|---|---|
| ER11 STEEL Sealed | 0.444" | 0.709" |
| ER16 STEEL Sealed | 0.659" | 1.063" |
| ER20 STEEL Sealed | 0.817" | 1.220" |
| ER25 STEEL Sealed | 1.013" | 1.378" |
| ER32 STEEL Sealed | 1.289" | 1.575" |
| ER40 STEEL Sealed | 1.604" | 1.811" |
| ER50 STEEL Sealed | 2.027" | 2.362" |
Features
- Series available: ERSS8 through ERSS50
- ER STEEL Sealed collets are designed for use with shank tools with no flats.
- Use of coolant collets with tools that are not cylindrical will result in coolant leakage.
- Sealed to 138 BAR/2000 PSI
- Only the nominal size can be clamped
- High precision & Ultra precision Seled collets are also available
- Corrosion-resistant surface finish for long tool life
- Precision-engineered, hardened, and tempered spring steel
PAC Precision Tools ER Steel Sealed Collets are designed for drilling, reaming, and high-speed machining applications, ensuring effective coolant use. The collets are designed for precise tool clamping, ensuring efficient machining, precise surface finish, and long tool life.
Frequently Asked Questions
Get Our Exclusive Product Catalog
Access the complete guide to our high-precision CNC tooling solutions, including Collets, Tool Holders, and essential accessories.
- High-resolution technical drawings & dimensions
- Comprehensive specifications for all series
- Sizing charts & spindle compatibility guides
Why Choose PAC Precision Tools USA?
PAC Precision Tool is a trusted supplier and distributor of reliable, durable, and high-precision tooling solutions in the USA. We support aerospace, automotive, woodworking, metalworking, and manufacturing industries with consistent accuracy and performance.
High-Accuracy & Durable
High-Accuracy & Durable
We maintain strict quality control to ensure every tool meets the highest industry standards, delivering consistent accuracy and performance.
Extensive Product Range
Extensive Product Range
We supply a wide range of precision tools, including Collets, Tool Holders, Bushings, Retention Knobs, CNC Centers, and essential accessories.
Reliable Support
Reliable Support
Backed by expert engineers and a customer-focused approach, we are committed to delivering outstanding support for superior performance.
Advanced Sourcing
Advanced Sourcing
Sourced from advanced global manufacturers, ensuring smooth operations, reduced downtime, and greater productivity every step of the way.
Our mission is simple: to be your most reliable partner in precision tooling, ensuring smooth operations, reduced downtime, and greater productivity every step of the way.
Quick Link
- Tool Holders
- Collets
- Tool Holders Bushings
- Retention Knobs
- Other Accessories
- ER Collet Holders
- End Mill Holders
- Hydraulic Holders
- Face Mill Holders
- Shrink Fit Holders
- Tooling Packages
- Power Milling Holders
- ER Collets
- ER Steel Sealed Collets
- ER Jet Spray Coolant Collets
- SK Collets (Super Collets)
- Reduction Sleeves For Hydraulic Chuck
- Straight Collets For Milling Chucks
- Quick Change Tapping Adapters
- Boring Bar Sleeves
- ER Wrench
- Tool Locking Device
