Blog

ISO 2768 defines general tolerances for machined parts in 4 classes: fine, medium, coarse, and very coarse. This guide covers the full tolerance tables for both Part 1 (linear and angular dimensions) and Part 2 (geometrical tolerances), explains what ISO 2768-mK means on a drawing, compares ISO 2768 to ASME Y14.5, and breaks down the common mistakes engineers make when specifying tolerances.

CNC machining from China isn't the budget fallback it used to be. It's a deliberate sourcing decision more procurement teams are making every year, and this guide breaks down the real numbers behind that shift: audited tolerances, hourly rates, verification steps, and how the major sourcing platforms actually compare.

Sourcing CNC machined parts from China can reduce costs without sacrificing quality, but it also raises practical questions for engineers and procurement teams. This FAQ compiles clear, experience-based answers to the most common questions about CNC machining in China, helping companies understand what to expect, what to specify upfront, and how to avoid common sourcing issues.

This guide covers cast vs extruded acrylic selection, speeds and feeds, surface finishes from as-machined to flame and vapor polished, design rules to prevent cracking, and what to include on your RFQ when sourcing acrylic CNC parts from verified factories.

With 2,000–3,500 fasteners used in a typical vehicle, choosing the right fastener for each application is essential. Explore the main types of automotive fasteners, along with specialty fasteners used throughout modern vehicle manufacturing.

Copper feels soft enough to dent with a fingernail, yet it's one of the more demanding materials to machine cleanly on a CNC machine because of softness, not hardness.

Micro CNC machining is not just standard CNC work on smaller parts. It requires the right machines, tooling, and inspection methods to hold micron-level tolerances on features often under 10mm. This guide explains how micro machining works, when Swiss-type machining matters, what tolerances are realistic, and how to verify a factory before you request quotes.

This buyer's guide covers CNC gear machining from a sourcing perspective: which of the four main processes (hobbing, shaping, grinding, skiving) fits your gear geometry and accuracy requirement, how to read ISO 1328 and AGMA grade numbers, why module vs diametral pitch is the most common cross-border specification error, what materials and heat treatments are used for different duty levels, and exactly what to include on an RFQ for CNC machined gears from verified Chinese factories.

Sheet metal offers endless design flexibility. But strength depends on how you reinforce it. Explore five practical techniques that improve stiffness and durability, from bending and ribbing to hemming and flanging. Learn how to strengthen sheet metal effectively.