Engineering selection support
We review workpiece drawings, machine models, spindle noses, drawbar details and production requirements before recommending a chuck or fixture.
CNC Workholding Manufacturer
For Precision Workholding Solutions
KORRETTO supplies a full range of machine tool accessories for workholding and toolholding applications. Beyond standard products, we draw on years of engineering experience to solve complex and high-precision clamping challenges with custom fixtures, special chucks and hybrid chuck designs.
- Accuracy ≤ 0.005 mm
- Manual, Pneumatic, Hydraulic & Electric Actuation
- North American Branch
- Global Response Within 12 Hours
Jaw Blank Storage
Hard Jaw Machining
Soft Jaw Machining
Jaw Grinding
Jaw Grinding Live
Scroll Plate Machining
Scroll Plate Hobbing
Inspection
Assembly
Packaging & Storage
Ready-to-Ship Area
Since 2008
CNC Workholding
Custom Fixture Support
Engineering Review
Hydraulic / Pneumatic / Special Chucks
Manufacturing Process Views
Jaw Blank Storage
Hard Jaw Machining
Soft Jaw Machining
Jaw Grinding
Jaw Grinding Live
Scroll Plate Machining
Scroll Plate Hobbing
Inspection
Assembly
Packaging & Storage
Ready-to-Ship AreaWhy Choose KORRETTO
Value We Bring to Your Manufacturing Process
Broad workholding range
Our range covers manual chucks, hydraulic power chucks, pneumatic chucks, collet chucks, rubber-bonded clamping heads, expanding mandrels, diaphragm chucks, indexing chucks and other machine tool accessories. Available workholding solutions cover workpieces from 0.01 mm to 3000 mm.
Custom clamping capability
For non-standard parts, special non-metallic components and ultra-high-precision workpieces, we can provide custom fixtures, multi-position layouts, integrated clamping methods and project-specific workholding fixture designs.
An extension of your team
We work as an extension of your team. You may not be a workholding expert, but we are. From your perspective, we select the right workholding solution by considering machine structure, accuracy requirements, deformation risk, cycle time, cost reduction and machining efficiency—not product names alone.
Core Workholding Product Lines
KORRETTO focuses on practical workholding products used in CNC turning, milling, grinding, automation and dedicated fixtures. Product selection is based on workpiece shape, clamping surface, machine interface, required accuracy, cutting load and production volume.
Manual Chucks
Manual chuck series for lathe setup, repair work, small-batch machining and flexible workholding.
Power Chucks
Hydraulic power chucks, rotary hydraulic cylinders, soft jaws and hard jaws for CNC lathe production.
Application-Specific Power Chucks
Pull-back, Ball Lock, compensation, finger and pipe-thread power chuck solutions for application-specific workholding.
Pneumatic Chucks
Pneumatic chuck options for compressed-air clamping, quick release and light to medium production setups.
Rubber-Flex Collets
Rubber-flex collets and rubber collet chucks for thin-wall and surface-sensitive parts.
Expanding Mandrels
Expanding mandrels and internal clamping solutions for bore-location and sleeve-type workpieces.
Diaphragm Chucks
Diaphragm chuck solutions for high repeatability, thin-wall parts and low-deformation clamping.
Collet Chucks
Front-mount, fixed, pneumatic and hydraulic collet chuck solutions for precision round-part clamping.
Indexing Chucks
Hydraulic and automatic indexing chuck solutions for angular positioning and multi-station machining.
Machine Vises
Vises and supporting machine tool accessories for milling, setup support and machining center workholding.
Dividing Heads / Rotary Tables
For angular positioning on the machine table, complementary to spindle-side indexing chucks in turning.
Drill Chucks
For drilling, tapping prep and light-duty tool holding with quick changeover across common tapers.
Magnetic Chucks
For fast holding of flat parts in grinding and milling where large-area magnetic clamping helps throughput.
CNC Tool Holders
For high-rigidity tool clamping on machining centers, including HSK, BT/BBT, SK and hydraulic holder options.
Lathe Centers
Live centers, dead centers and tailstock support for shafts, sleeves and long workpieces in turning.
Vacuum Chuck
A multi-hole structure delivers strong vacuum holding, with dedicated models available for lathe applications.
Application Scenarios
Application Scenarios
Match the machine, workpiece geometry and clamping direction with the most suitable workholding families for your process.
General turning
General Lathe & CNC Lathe
Flexible and production turning with spindle-side clamping, drilling and tailstock support.
Shaft turning
CNC Shaft Turning
Surrounding clamping and tailstock support for shafts, sleeves and round components.
Multi-position machining
Valves & Cross-Shaped Parts
Indexed positioning for valve bodies, cross joints and components requiring several machining directions.
Disc workpieces
Disc, Flange & Ring Parts
Specialized axial and profile clamping for CNC lathes, vertical lathes and machining centers.
Pipe threading
Oil Pipe Thread Machining
Long-pipe workholding for oilfield tube and pipe-thread machining applications.
Internal clamping
Gear & Bore Location
Internal expansion for turning, hobbing, milling and grinding equipment used in gear production.
Low-deformation clamping
Thin-Wall Precision Parts
Controlled clamping for thin-wall rings and precision parts on CNC lathes and cylindrical grinders.
Milling & positioning
Machining Centers
Table-side workholding, tool clamping and angular positioning for machining center operations.
Magnetic workholding
Grinding & Machining Centers
Large-area magnetic holding for ferromagnetic plates and flat workpieces.
Vacuum workholding
Non-Magnetic & Aluminum Plates
Vacuum holding for flat non-metallic components, aluminum plates and unobstructed edge machining.
Project fixture
Machining Center Modular Fixtures
Project-specific fixture layouts for multiple locations, parts and machining operations.
Multi-action clamping
Hybrid Chuck Projects
Custom workholding that combines several clamping directions or sequential actions in one fixture.
Cases & Technical Articles
Workholding Cases & Insights
Practical selection guides, application checks and technical articles for CNC workholding projects.
Power Chuck Selection Workflow: From Workpiece Drawing to Chuck, Jaws and Cylinder
A practical workflow covering the workpiece, clamping position, chuck, jaws, cylinder and machine interface.
Read Article
Power Chuck Inquiry Template for CNC Lathe Workholding Projects
Prepare the machine, spindle, drawbar, cylinder, workpiece and jaw information needed for review.
Read Article
How to Match a Rotary Hydraulic Cylinder With a Power Chuck
Check cylinder type, piston area, drawbar stroke, through-hole size, pressure and mounting data.
Read Article
Power Chuck Jaw Design Mistakes That Affect Runout and Clamping Stability
Review jaw contact, soft-jaw boring, gripping length and other details that affect clamping results.
Read Article
Why Power Chuck Clamping Force Drops at High Spindle Speed
Understand the effects of centrifugal force, jaw mass, gripping diameter and hydraulic pressure.
Read Article
Power Chuck Maintenance Checklist for CNC Lathes
Inspect jaw movement, lubrication, hydraulic pressure, drawbar stroke, runout and clamping safety.
Read Article
Power Chuck vs Manual Chuck: When CNC Turning Needs Automatic Clamping
Compare automatic clamping, cycle time, repeatability and batch-production requirements.
Read Article
How to Choose a Power Chuck for Bar Work, Shaft Work and Flange Parts
Compare bore size, jaw stroke and clamping length for different workpiece forms.
Read Article
Power Chuck Replacement Guide: Machine, Cylinder and Drawbar Compatibility
Confirm the spindle nose, rotary cylinder, drawbar stroke and mounting interface before replacement.
Read Article
Power Chuck Selection Mistakes: Data Gaps That Delay Quotation
Avoid delays by preparing spindle, drawbar, cylinder, workpiece and clamping information.
Read Article
KORRETTO Knowledge Center
View All Cases & Technical Articles
Browse application cases, workholding guides, product comparisons and technical resources.
View All Articles