Quality guaranteed
Precision Machining
Expert solutions for challenging manufacturing projects with precision quality.


EDM Services
Our specialized EDM capabilities include wire EDM and die sinker EDM for intricate designs and precision applications, ensuring high-quality results tailored to your project requirements.


Tooling Solutions
We offer expert tooling making, combining our machining expertise with advanced techniques to deliver reliable and efficient tooling solutions for various manufacturing needs.
CNC Machining
From Your blueprint or CAD to Reality, Faster Than Ever.
In today's fast-paced market, speed is paramount. Our CNC services empower you to quickly validate your designs, identify potential issues, and bring your products to market faster. Using cutting-edge technologies like FDM, and CNC machining we deliver high-quality parts with exceptional accuracy and detail, often in a matter of days. Stop waiting and start innovating. You supply the design specification we bring them to life.
Tooling repair service
For cost-effective and reliable tool repair, our expertise lies in TIG welding. With 27 years of machining experience, specializing in tool steels like H-13, S7, and A2, we provide precision TIG welding solutions for common tool damage, including:
Edge Wear/Chipping: TIG welding restores sharp edges and original geometry to worn tooling.
Cracks/Breaks: Expert TIG welding ensures structural integrity and prevents crack propagation.
Gouges/Dents: Precise TIG welding rebuilds smooth, functional tool surfaces.
3-D Scanning Service






Heat Treating & Hardness Testing
Furnace capabilities
24"X24"
Atmosphere controlled
Completed in-house
Hardness Testing
7 Different hardness scales
20 Different types of materials supported


Precision Measurement and Inspection Capabilities
0 - 12" Mitutoyo Outside Micrometer
0 - 12" Mitutoyo Inside Micrometer
Mitutoyo Grade 0 Gauge Blocks
Granite Surface plate - Grade A .0001" accuracy
Granite Angle Plate - Grade A .0001" squareness & parallelism
Surface Gauge
Profilometer - surface and profile measurement
3D Scanner - Blue laser line metrology-grade Accuracy: up to .03mm (.001")
Swiss-made test indicators - Resolution of .00005"
Hardness Testing - 20 different materials on 7 different scales
Sine plate
Ultra-high precision square
Our Locations
Herold Tool & Machining serves clients across the United States, providing expert machining solutions tailored to meet your manufacturing needs.
Location
6464 County Road 324, Palmyra, MO 63461
Hours
Mon-Fri 9 am - 4 pm
Herold Tool & Machining excelled at our project, providing precision services and exceptional quality in every aspect. Highly recommend for challenging manufacturing needs.
John Doe
★★★★★