# Co-Op Tool Production Workholding This MFR.ID profile was supplied, reviewed, and approved by Co-Op Tool Production Workholding. Originally approved on 6/25/2026; last updated 6/25/2026. Capability data is manufacturer-approved for public sourcing and RFQ use. ## Profile Links - Canonical profile: https://mfr.io/productionworkholding - JSON data: https://mfr.io/productionworkholding.json ## Company Overview Co-Op Tool Production Workholding, a division of Hammill Manufacturing Company, designs and builds production fixtures, custom chucks, and turnkey automation for high-volume CNC machining. From a 40,000 sq ft Toledo, Ohio facility, the team supports large-part CNC machining (5-axis up to 33 in dia; gun drilling over 40 in deep), precision grinding, and in-house assembly and run-off. ISO 9001:2015 certified, Co-Op Tool provides rebuilds, replacement tooling, and field support for automotive, appliance, and industrial programs. ## Quick Reference - Processes: Custom Precision Chucks, Machining Fixtures & Tombstones, Automation Modules & EOAT Systems, CNC Machining, Tooling Maintenance & Refurbishment - Location: Toledo, OH 43612 - Employees: 51-200 - Founded: 1955 - Contact: info@co-op-tool.com - +1 877-300-5968 - Verified: Manufacturer Approved ## Capabilities ### Precision Chucks Custom precision chucks give turning, boring, and grinding programs a workholding design tailored to part geometry, clamp behavior, sensing, and runout requirements instead of forcing the job into a standard chuck format. Co-Op builds production-intent collet, diaphragm, jaw, iris, and other special chuck designs for machine builders, distributors, tier suppliers, and OEMs, including solutions for rough turning, finish turning, grinding, and oversized custom applications. - Process: Custom Precision Chucks - Highlights: Production-intent custom chuck programs for turning and grinding applications, Collet, diaphragm, jaw, iris, power, and other special chuck configurations, Pull-back, static-clamping, compensating, thru-hole, and air-sensing design options, Published concentricity and repeatability as close as 0.00005 in on suitable designs, Reference build includes a 55 in diameter, 3.5 ton hydraulic scroll chuck - Subprocesses: Fixture & Gauge Manufacture, Manual Machining & One-Off Tool-Room Jobs - Specifications: - Application Range: Rough turning, Finish turning, Boring, Facing, Grinding, High-RPM machining - The published application range makes clear that the same family can cover first-operation gripping and finishing roles when designed correctly. - Actuation Methods: Hydraulic, Pneumatic, Manual, Internal springs, Hybrid actuation combinations - Retain the full actuation menu because it signals fit across both new production machines and retrofit workholding programs. - Clamping Modes: Pull-back, Static clamping, Compensating, Thru-hole, Air-sensing assisted - Clamping mode is a quoting-level variable because part location strategy changes materially between thin-wall, thru-hole, and compensated applications. - Chuck Styles: Collet chucks, Diaphragm chucks, Jaw chucks, Iris chucks, Power chucks, Special-design chucks - The style list shows that Co-Op engineers chuck architecture around the part and operation rather than selling one default gripping format. - Precision Level: Concentricity and repeatability can be held as close as 0.00005 in on suitable designs. - This precision claim is the core reason the family belongs in finish-turning, grinding, and other repeatability-sensitive workflows. - Large Format Reference Build: The portfolio includes a custom 55 in diameter, 3.5 ton hydraulic scroll chuck for oversized applications. - The oversized scroll chuck reference is useful proof that Co-Op can scale custom chucking beyond small precision parts. ### Production Fixtures Production-intent fixtures give high-volume machining programs a dedicated workholding path for difficult parts, faster changeovers, and repeatable part location across the full launch cycle. Co-Op centers this offer on tombstones, trunnions, progressive multi-sided builds, inspection fixtures, and welding fixtures, with integrated actuation, full engineering documentation, in-house testing with actual parts, and prove-out support before release to production. - Process: Machining Fixtures & Tombstones - Highlights: Turnkey fixture programs for medium- to high-volume machining applications, Cast iron tombstones with integrated hydraulic routing called out as a specialty, Trunnion, progressive, multi-sided, inspection, and welding fixture formats, Hydraulic, pneumatic, manual, captured-oil, and spring-clamp actuation options, Concept, design, manufacture, assembly, testing, and customer-plant prove-out in one package - Subprocesses: Fixture & Gauge Manufacture, Hydraulic Integration - Specifications: - Fixture Functions: Part locating, Clamping, Indexing, Sequencing, Pressure reducing, Utility routing - These functions describe a complete engineered fixture system with locating, sequencing, and utility-management features. - Maximum Published Machining Sides: 6 sides - Six-sided coverage reinforces that the offer is built for dense machining access and high part-count programs. - Engineering Deliverables: CAD drawings, Detail drawings, Assembly drawings, Commercial-item package, Troubleshooting support - Keep the documentation package prominent because buyers are purchasing a released production asset with drawings and support. - Actuation Methods: Hydraulic, Pneumatic, Manual, Captured oil, Spring clamp with air or hydraulic unclamp - The actuation range matters because these fixtures can be adapted to transfer lines, HMC cells, and other cycle-sensitive machining environments. - Delivery Model: Concept development, Custom tool layout, Manufacture, Assembly, Testing with actual parts, Customer-plant prove-out - The delivery model should stay framed as turnkey accountability from concept through plant prove-out. - Primary Fixture Architectures: Multi-sided fixtures, Trunnion fixtures, Progressive fixtures, Indexing fixtures, Inspection fixtures, Welding fixtures - Use these architectures to frame Co-Op as a production workholding supplier, not a general fixture shop. ### Custom Automation Solutions Turnkey automation modules extend Co-Op's workholding expertise into part transfer, staging, alignment, and machine-tending support that helps keep machining cells running with less manual intervention. The offer covers concept development, design, approval, manufacture, assembly, and prove-out for both new installations and retrofits, including EOAT, orientation modules, compliance devices, automation fixtures, sensing, and complete automated systems. - Process: Automation Modules & EOAT Systems - Highlights: Custom turnkey automation package from concept through prove-out at the client's plant, End-of-arm tooling with 2-jaw, 3-jaw, pullback, rotating, collet, and custom gripping systems, Orientation, pre-staging, transfer, compliance, and alignment modules, Automation fixtures with intelligent part-presence sensing and positioning features, Supports both new automation builds and retrofit upgrades to existing applications - Subprocesses: Prototype Tooling Design & Build, Manual Machining & One-Off Tool-Room Jobs - Specifications: - EOAT Gripping Architectures: 2-jaw parallel gripping, 3-jaw concentric gripping, Pullback angular gripping, Rotating gripping, Collet gripping, Custom gripping systems - EOAT gripping style is a configurable product dimension here, which is why the family fits varied part-handling programs. - Automation Scope: End-of-arm tooling, Orientation modules, Pre-staging modules, Compliance devices, Alignment devices, Turnkey automated systems - The scope should stay broad because this family can cover both modular automation hardware and complete automated systems. - Handling And Positioning Functions: Part transfer, Pre-stage presentation, Compliance control, Alignment control, Part positioning, Presence verification - These functions distinguish the offer as active automated part control around the machine, not just static tooling design. - Delivery Model: Concept development, Design, Approval, Manufacture, Assembly, Customer-plant prove-out - The delivery model matters because the company markets launch accountability through design, build, assembly, and prove-out. - Program Fit: New applications, Retrofit applications, Standalone modules, Complete automated systems - Use the program-fit statement to show that buyers can engage Co-Op for a single module, a retrofit, or a fuller automation package. - Related Production Support: Automation fixtures, Perishable tooling, Backup tooling, Troubleshooting support - Backup tooling and support should remain attached because the automation offer is positioned around uptime and continuity. ### Large Part Machining & Grinding Oversized contract machining and grinding gives Co-Op a direct service lane for large precision components, emergency replacement details, and recovery work that cannot wait on an external tooling queue. The Toledo operation combines large boring, CNC machining, turning, OD/ID grinding, plate grinding, gun drilling, and CMM inspection, with published capacity for both heavy envelope work and smaller 5-axis geometries that need close control. - Process: CNC Machining - Highlights: Contract machining and grinding for large precision components and replacement parts, Large boring, turning, CNC machining, OD/ID grinding, plate grinding, and gun drilling in one shop, Published 5-axis machining envelope of 36 in x 26 in x 26 in alongside larger-frame machining, CMM inspection sized for the same class of large work the team machines and grinds - Subprocesses: CNC Machining, Deep-Hole / Gun Drilling, Fixed-Headstock (Chucking) CNC Turning, Trunnion & Thrust Roller Manufacture & Refurbishment, Functional & End-of-Line Testing - Specifications: - Large Boring Envelope: 60L x 120W x 55H in - The boring envelope is one of the clearest published signals that this service is built for oversized precision components. - Service Role: Contract machining, Replacement components, Repair support, Large precision parts, Run-off and inspection support - Frame the service role around uptime support and fast problem-solving, because that is how Co-Op markets the offer. - Gun Drilling Envelope: Gun drilling runs from 3/16 to 1/2 in diameter up to 40 in deep. - The gun-drilling range strengthens fit for long internal features in hydraulic, structural, and custom replacement components. - Turning And Cylindrical Grinding Envelope: CNC turning and OD/ID grinding are listed to 36 in diameter by 24 in length. - Turning and cylindrical grinding on the same size class support recovery, finish, and replacement work without leaving the shop. - CMM Inspection Envelope: 74L x 120W x 60H in - Inspection range matters here because Co-Op positions verification as part of the same service lane, not a separate handoff. - CNC Machining Envelope: Machining capacity includes 78 x 60 x 55 in work plus a separate 36 x 26 x 26 in 5-axis envelope. - Keep both machining envelopes visible so buyers can see the mix of large-frame capacity and simultaneous 5-axis capability. ### Replacement Tooling, Rebuild & Support After a line is launched, Co-Op stays in the program through rebuilds, backup tooling, replacement details, and troubleshooting intended to keep fixtures and chucks running instead of forcing full replacement. This service path covers build-to-print recovery, reverse engineering, reconditioning, testing, certification to original specifications, and improvement recommendations for both Co-Op tooling and legacy tooling from other sources. - Process: Tooling Maintenance & Refurbishment - Highlights: Rebuild, reconditioning, and replacement support for production fixtures and chucks, Build-to-print manufacturing and reverse engineering when legacy drawings are missing, Disassembly, inspection, component replacement, reassembly, testing, and certification workflow, Can support Co-Op tooling as well as legacy workholding supplied by others, Improvement recommendations available to optimize performance, accuracy, and tool life - Subprocesses: Polishing / Grinding, OD / ID Cylindrical Grinding, Surface Grinding, Manual Machining & One-Off Tool-Room Jobs, Functional & End-of-Line Testing - Specifications: - Replacement And Backup Path: Build-to-print replacement details, Backup tooling creation, Prompt service response, Dedicated service-team support - Backup and replacement tooling should stay explicit because downtime avoidance is one of the main buyer outcomes. - Supported Tooling Sources: Co-Op supports tooling it originally supplied as well as inherited workholding from other sources when a customer needs recovery or backup coverage. - Cross-source serviceability matters for plants that need help on legacy tooling regardless of original builder. - Rebuild Workflow: Disassembly and cleaning, Inspection of internal components and commercial items, Replacement of worn or defective components, Reassembly, Function and accuracy testing, Certification to original specifications - The published rebuild sequence makes this a controlled restoration workflow, not just bench repair or part swapping. - Lifecycle Service Scope: Rebuild services, Reconditioning, Replacement tooling, Backup tooling, Troubleshooting, Field support - The lifecycle scope is central to the commercial story because the offer covers both planned backup support and corrective recovery. - Support Orientation: The service is positioned around keeping production running smoothly and getting tooling back into reliable operation quickly. - Keep the support orientation distinct from new-build product families so buyers can see this as an after-launch uptime service. - Improvement Options: Design improvements, Performance optimization, Accuracy improvement, Tool-life improvement - Improvement options are important because the service can include performance, accuracy, and tool-life upgrades during recovery work. ## Certifications - ISO 9001:2015 (Type: Certification; Authority: International Organization for Standardization (ISO); Status: Active; Scope: Quality Management System for Co-Op Tool Production Workholding; URL: https://www.iso.org/iso-9001-quality-management.html) - National Tooling and Machining Association (NTMA) Membership (Type: Membership; Authority: National Tooling and Machining Association (NTMA); Status: Active; Scope: NTMA Membership; URL: https://ntma.org) ## Industries Served - Automotive & Transportation: Co-Op Tool explicitly cites knuckles and steering arms for automotive applications and positions its production fixtures, custom chucks, automation, and large-part machining around medium- to high-volume CNC manufacturing programs. - Consumer Goods & Appliances: Co-Op Tool explicitly cites scroll and rotary compressor components for the appliance industry and also references consumer-product tooling programs, showing its workholding and machining output supports appliance and other durable consumer-product production. - Construction Products & Building Materials: Co-Op Tool explicitly cites CNC fixtures used to produce hand tools and plumbing tools for home construction, supporting a construction-products and building-materials market fit. - Industrial Machinery & Heavy Equipment: Co-Op Tool explicitly cites large welding fixtures for heavy industrial markets and showcases throughput-improvement fixturing for an industrial pump manufacturer, supporting industrial machinery and heavy-equipment applications. - Medical Devices & Healthcare Equipment: Co-Op Tool explicitly cites unique fixture, automation, gaging, and chuck designs for implantable medical devices, supporting medical-device and healthcare-equipment manufacturing programs. - Energy & Power Generation (inc. Renewables): Co-Op Tool says its Co-Op Energy division specifically focuses on manufacturing large, highly complex precision components for the energy and power generation market. - Aerospace & Defense: Co-Op Tool's about page lists aerospace among the industries it serves, and its large-part machining page says the contract machining and grinding service supports aerospace projects. ## Facilities ### Co-Op Tool Design & Manufacturing Facility (Headquarters) 40,000 sq ft Toledo headquarters for design, machining, grinding, and assembly of production fixtures, custom chucks, and automation modules. Includes in-house run-off/prove-out, CMM inspection, and rebuild/replacement tooling support. Located in the Midwest manufacturing corridor for responsive field service and shipment to high-volume plants. - Type: manufacturing_facility - Headquarters: Yes - Email: info@co-op-tool.com - Phone: +1 419-476-9125 - Address: 1517 Coining Drive, Toledo, OH 43612, USA ## Verification Status - Business Entity: Verified 1/22/2026 - Technical Capabilities: Verified 6/25/2026 - Locations & Facilities: Verified 1/22/2026 - Reviews & Ratings: Not yet verified - MFR.ID Created: 1/22/2026 - Last Updated: 6/25/2026