FeaturedReference guide
ISO 2768 Tolerance Charts
ISO 2768-1 & ISO 2768-2 tables — linear, angular, and geometric tolerances.
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Articles
19 resources
FeaturedReference guide
Design for Manufacturing (DFM) Guide
Best practices and design guidelines for cost-effective CNC machining.
Procurement
How to Choose a CNC Machining Service
Jul 11, 202611 min read
How to choose a CNC machining service: evaluate machine capability, inspection (CMM), materials, lead time, documentation, and price transparency before you place the order.
Tolerance Standards
125 Surface Finish Explained: Ra 125 µin
Jul 11, 20268 min read
A 125 surface finish is Ra 125 µin, the standard as-machined CNC default on US drawings: when to use it, when to go finer, and what it costs.
Tolerance Standards
CNC Machining Tolerances: Types and How to Specify
Jul 11, 202615 min read
CNC machining tolerances for buyers: types, ISO 2768, ISO 286 fits, stack-up, process capability, cost impact, and how to specify on drawings.
Procurement
On-Demand CNC Machining: Custom Parts Fast
Jul 11, 202611 min read
On-demand CNC machining delivers custom parts without MOQ or tooling waits: how the process works, what to provide, and when it fits your RFQ.
Tolerance Standards
EN 10204 3.1 and 3.2 Certificates Explained
Jul 9, 202611 min read
EN 10204 3.1 and 3.2 certificates explained: four inspection document types, when to require 3.1 vs 3.2, validation on receipt, and PO wording for material traceability.
Metal and Alloys
Aluminum vs Steel for CNC Parts
Jul 9, 20269 min read
Aluminum vs steel for CNC parts: compare carbon and alloy steel with aluminum on weight, strength, machinability, heat, and cost — and when to choose each.
Tolerance Standards
What is DIN 7168 and How it Differs from ISO 2768
Jul 9, 20268 min read
DIN 7168 was Germany's general tolerance standard before ISO 2768 replaced it in 1991. Learn how the two standards compare, where tolerance values match, and which to use today.
Procurement
The Quality Cost Speed Triangle Explained
Jul 9, 20269 min read
The quality cost speed triangle for CNC sourcing: why you can rarely maximize all three, how each corner works, and how buyers manage trade-offs with DFM and clear priorities.
Procurement
8 Strategies to Get Your CNC Parts Faster
Jul 9, 202610 min read
Eight strategies to get your CNC parts faster when outsourcing: quoting, materials, supplier capacity, DFM, inspection, and door delivery.
Procurement
Prototype to Production: Precision CNC Machining in India
Jul 9, 202612 min read
Prototype to production for CNC machined components in India: POC through mass production, validation stages, cost drivers, DFM, and scaling with Indian machining suppliers.
Procurement
How to Reduce CNC Lead Time: A Buyer's Guide
Jul 8, 202614 min read
How to reduce CNC lead time on custom parts: where delays hide, what slows suppliers, and practical ways to cut waiting from RFQ to delivery.
Metal and Alloys
Aluminum vs Stainless Steel for CNC Parts
Jul 8, 20269 min read
Aluminum vs stainless steel for CNC parts: compare weight, strength, corrosion, machinability, and cost; and when to choose each metal for your part.