How do I choose the correct ER Wrench for my setup?

Each ER Wrench is designed to fit a specific ER Nut size (like ER11, ER16, ER20, ER32, etc.). Selecting the right size ensures proper grip during tightening without damaging the nut or collet. You can check compatibility charts at pactoolsusa.com.

What materials are ER Wrenches made from?

Most ER Wrenches are manufactured from hardened alloy steel for strength and durability. Some feature rubberized grips or ergonomic handles to reduce operator fatigue. Explore available designs at pactoolsusa.com.

Can an ER Wrench be used with torque settings?

Yes, many ER Wrenches can be used in combination with a torque wrench or torque setting guidelines to ensure the collet nut is neither over- nor under-tightened, protecting both the tool and spindle. View torque-compatible options at pactoolsusa.com.

What is the risk of using an incorrect or worn ER Wrench?

Using an incorrect or worn wrench can strip the flats on the ER Nut, cause improper tightening, or damage the tool holder. Always use the correct size and inspect tools regularly. Replacement wrenches are available at pactoolsusa.com.

Are there quick-lock or ratchet-style ER Wrenches available?

Yes, some manufacturers offer quick-lock or ratcheting ER Wrenches for faster tool changes and improved ergonomics. These options can help reduce cycle time in production environments. Check advanced models at pactoolsusa.com.

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111511-C20 | ER WRENCH

$30.00

Chicago, USA Stock -

Canada Stock -

Wrench for MC20mm, MC3/4" Power Milling Chucks & Integral Shank Drill Chucks

Delivery and Shipping

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 262-282-2456.