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Business Details
50+ Years
experience
Your Partner for Precision Machining and Grinding Solutions
B & B Machine & Grinding Service has served the machining and manufacturing industry since 1948, maintaining a commitment to precision, quality, and customer satisfaction. Our team of skilled machinists utilizes advanced equipment to deliver beyond standard tolerances, ensuring components meet rigorous specifications. With ISO 9001:2015 certification and ITAR compliance, we uphold the highest quality control standards through our temperature-controlled lab and state-of-the-art testing tools. Our capabilities span precision machining, grinding, assembly, and packaging, supported by in-house pickup and delivery for Front Range Corridor clients. Decades of partnerships expand our service offerings to include welding, plating, and heat treating, providing a single-source solution trusted by industries from aerospace to energy.

Our vertical mills, horizontal machining centers, CNC lathes, and rotary grinders handle complex projects, while an average machinist tenure of 15 years ensures continuity and expertise. We prioritize efficiency through streamlined processes, reducing lead times and costs for clients while maintaining 98% customer retention. Our facilities and equipment allow packaging of components in any configuration, and our quality assurance protocols ensure every product meets exacting standards. As a family-owned business operating for over 75 years, we combine legacy stability with continuous investment in technology and personnel development. Our reputation across aerospace, defense, and technology sectors reflects our dedication to exceeding expectations through innovation and reliability.
Services
Precision Machining Grinding Services Assembly & Packaging Local Pickup/Delivery Quality Assurance Testing
Details
  • Year established: 1948
Highlights and features
  • We have over 75 years of experience in precision machining and manufacturing.
  • Our ISO 9001:2015 certification ensures rigorous quality control standards.
  • We provide in-house pickup and delivery along the Front Range Corridor.
  • Our equipment handles tolerances up to .0002" with 15+ year experienced machinists.
  • Our single-source solution reduces lead times through integrated partnerships.
Associations and certifications
  • ISO 9001:2015
  • ITAR Compliant
Services
Precision Machining
Our precision machining services utilize CNC mills and lathes capable of up to .0002" positional tolerances. With vertical mills ranging from 30x16x20 to 60x24x22 envelopes and horizontal centers with 78x60x55x19 axis travel, we handle complex geometries. Our equipment supports components exceeding standard sizes while maintaining dimensional accuracy. This service caters to aerospace, defense, and industrial clients requiring tight tolerances.
Grinding Services
Our grinding capabilities include surface, rotary, and OD/ID grinding with Blanchard, Mattison, and Chevalier equipment. The 60" diameter Blanchard grinder and 48" Mattison rotary grinder process large components. Surface grinding uses a Chevalier FSG 3A1224, while Toyoda Universal machines handle OD/ID applications. This service provides precision finishes for aerospace, energy, and manufacturing industry components requiring exact dimensional control.
Assembly & Packaging
Our full-service assembly and packaging solutions integrate with machining workflows to streamline client operations. Teams complete precision assembly of multi-component systems before final packaging. Facilities accommodate custom configurations for various sizes, shapes, and weights. All assemblies undergo quality checks aligned with ISO 9001:2015 standards before shipment. This service eliminates third-party logistics while maintaining quality control.
Local Pickup/Delivery
In-house logistics services expedite orders along the Front Range Corridor through dedicated pickup and delivery. This reduces lead times by eliminating third-party transportation dependencies. The service supports just-in-time manufacturing schedules while maintaining component security. Clients benefit from integrated coordination between machining and delivery operations without additional handling risks.
Quality Assurance Testing
All output undergoes rigorous quality assurance in our temperature-controlled lab. Equipment includes Numerex CMMs, SPI optical comparators, and Rockwell hardness testers. Protocols align with NIST-traceable standards to ensure measurement consistency. Testing covers dimensional accuracy, surface finish, and material properties. This service guarantees compliance with ISO 9001:2015 requirements before client delivery.
Questions
What industries do you serve?
We serve aerospace, defense, energy, food and beverage, manufacturing, oil and gas, municipal, and technology sectors with precision machining solutions.
Are you ISO certified?
Yes, we hold ISO 9001:2015 certification and maintain ITAR compliance for quality control and international trade standards.
Do you offer local pickup and delivery?
Yes, we provide in-house logistics services along the Front Range Corridor to expedite order fulfillment and reduce shipping costs.
What machining tolerances can you achieve?
Our equipment maintains positional and dimensional tolerances up to .0002", supported by multi-axis CNC mills and lathes.
Do you provide assembly services?
Yes, we offer complete assembly and packaging of components, eliminating third-party logistics while maintaining quality control through final inspection.
How long have you been in business?
We've operated continuously since 1948, providing machining services for over 75 years with third-generation leadership in Denver.