Product Description
CMT HSK-63F Chuck for EOC-25 Precision Collet (DIN-6388) - Right-Hand Rotation by CMT is a high-precision tool holding chuck engineered for CNC machining centers, point-to-point machines, and CNC router construction centers. Designed around the HSK-F63 shank interface with an H78 gauge length, this chuck accepts EOC-25 collets manufactured to the DIN-6388 standard, delivering the rigid, accurate clamping performance that demanding woodworking and panel processing applications require. Whether you are running hardwood, softwood, plywood, MDF, or composite panels, this chuck provides a secure and repeatable tool connection for routing, milling, and boring operations.
Key Features
- HSK-F63 Shank Interface with H78 Gauge Length - provides a self-centering, face-and-taper contact connection that reduces runout and maximizes rigidity at high spindle speeds, keeping cuts accurate and repeatable across production runs.
- EOC-25 Collet System Compatible (DIN-6388 Standard) - accepts industry-standard DIN-6388 collets, making it straightforward to match a wide range of cutting tool shanks without sourcing specialty hardware.
- Right-Hand Rotation Design - engineered specifically for RH spindle configurations, ensuring proper clamping force direction so the collet nut tightens under cutting load rather than loosening.
- Broad Machine Compatibility - verified for use on Homag (from September 1994), Eima (from September 1994), Dubus, Weeke, Biesse, SCM, Morbidelli, and Masterwood machines, reducing guesswork when selecting a chuck for your equipment.
- Precision Machined Construction - close manufacturing tolerances minimize tool runout, which translates directly into cleaner cut edges, longer cutting tool life, and reduced vibration at the spindle.
Why This Product
- If your CNC machining center or point-to-point machine uses an HSK-F63 spindle nose, this chuck provides a direct, standards-compliant fit without adapters or modifications - keeping your tooling stack short and rigid.
- The DIN-6388 EOC-25 collet standard is widely supported, so investing in this chuck gives you access to a broad range of compatible collets and cutting tools from multiple suppliers.
- Compatibility with eight major machine brands - including Biesse, SCM, Weeke, and Homag - makes this chuck a practical choice for shops running mixed equipment or planning future machine upgrades.
- Right-hand rotation is the most common spindle direction in woodworking CNC equipment, and this chuck is purpose-built for that configuration, meaning the clamping geometry works with your spindle rather than against it during cutting.
Specifications
- Manufacturer Part Number: 183.320.03
- Brand: CMT Orange Tools
- Shank Type: HSK-F63
- Gauge Length: H78
- Collet System: EOC-25
- Collet Standard: DIN-6388
- Rotation: Right-Hand (RH)
- Product Class: Router Cutter Chuck
- Status: Active
Approved Applications
- CNC Router Construction Centers
- CNC Machining Centers
- Point-to-Point Machines
- Routing Operations
- Milling Operations
- Boring Operations
- Hardwood Machining
- Softwood Machining
- Plywood Processing
- MDF Processing
- Composite Panel Machining
Frequently Asked Questions
Which machines is the CMT 183.320.03 chuck compatible with?
This chuck is designed for use on Homag and Eima machines from September 1994 onward, as well as Dubus, Weeke, Biesse, SCM, Morbidelli, and Masterwood CNC machining centers and point-to-point machines equipped with an HSK-F63 spindle interface.
What collet type does this chuck accept?
The CMT 183.320.03 is designed to accept EOC-25 precision collets manufactured to the DIN-6388 standard. It does not accept other collet systems or non-DIN-6388 collets.
Is this chuck suitable for left-hand rotation spindles?
No. This chuck is engineered specifically for right-hand (RH) rotation spindles. Using it on a left-hand rotation spindle would work against the clamping geometry and is not a supported configuration.
What does the HSK-F63 shank type mean for my machine setup?
HSK-F63 refers to the hollow shank taper interface at size 63mm, which uses simultaneous face and taper contact for a rigid, repeatable connection at the spindle. The H78 designation indicates the gauge length of the chuck body. Your machine spindle must accept HSK-F63 tooling for this chuck to fit correctly.
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