Product Description
The CMT Precision Collet EOC-25, Diameter 1/4" (6.35mm) is a high-accuracy tool holding collet built to the DIN 6388 standard, designed for CNC routers, machining centers, and point-to-point machines. This precision collet accepts 1/4" (6.35mm) shank diameter router bits and CNC tooling, delivering the tight tolerances and consistent clamping performance that demanding routing, milling, and boring operations require. Whether you are running hardwood, softwood, MDF, plywood, composite material, or aluminum, this EOC-25 collet provides reliable tool retention and minimal runout for accurate, repeatable results.
Key Features
- DIN 6388 Precision Standard - machined to strict dimensional tolerances, this collet delivers minimal runout and consistent tool positioning, which translates directly into cleaner cuts and longer tool life during CNC routing and milling operations.
- EOC-25 Collet System Compatibility - fits EOC-25 collet chucks used on CNC routers, machining centers, and point-to-point machines, making it a direct-fit replacement that requires no adapters or modifications.
- 1/4" (6.35mm) Bore Diameter - precisely sized to accept 1/4" shank router bits and CNC cutting tools, ensuring a secure, centered grip on the tool shank for accurate machining.
- Replaceable Collet Design - designed as a standard, interchangeable precision collet, allowing worn collets to be swapped out quickly to restore clamping performance without replacing the entire chuck assembly.
- Special Dimensions Available on Request - non-standard bore sizes can be sourced when the standard 6.35mm diameter does not match your tooling requirements, adding flexibility for specialized machining setups.
Why This Product
- The DIN 6388 precision specification means this collet is built to a verified dimensional standard - not a loose commercial tolerance - giving CNC operators confidence that tool runout is minimized from the moment the collet is installed.
- As a standard EOC-25 format collet, this CMT component is a practical like-for-like replacement for worn or damaged collets in compatible CNC router and machining center spindles, reducing downtime on the shop floor.
- The 1/4" (6.35mm) bore size covers one of the most widely used router bit shank sizes, making this collet immediately useful for a broad range of routing, milling, and boring applications across wood, composite, and aluminum workpieces.
- Built by CMT to precision collet standards, this component supports accurate, repeatable machining across multiple material types - from hardwood and softwood panels to MDF, plywood, and aluminum - without requiring application-specific tooling changes.
Specifications
- Manufacturer Part Number: 185.064.00
- Brand: CMT Orange Tools
- Collet System: EOC-25
- Standard: DIN 6388
- Diameter: 1/4"
- Bore Diameter: 6.35mm
- Product Class: Router Cutter
Approved Applications
- CNC Routing
- Boring
- Milling
Frequently Asked Questions
What collet system does this collet belong to?
This collet is part of the EOC-25 collet system and is manufactured to the DIN 6388 precision standard. It is designed for use in EOC-25 compatible spindles found on CNC routers, machining centers, and point-to-point machines.
What shank diameter does this collet accept?
This collet accepts tool shanks with a diameter of 1/4" (6.35mm). It is sized for standard 1/4" shank router bits and CNC cutting tools used in routing, milling, and boring applications.
What materials can be machined using tooling held in this collet?
This precision collet is suitable for use when machining hardwood, softwood, MDF, plywood, composite materials, and aluminum, making it appropriate for a wide range of CNC routing and machining center work.
Is this collet available in other bore sizes?
The standard version of this collet is sized at 1/4" (6.35mm). Special dimensions are available on request for applications that require a different bore diameter outside the standard offering.
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