Engineering Blog
Material comparisons, machining process guides, and manufacturing cost insights from our engineering team in Suzhou.

CNC Machining Cost: How to Estimate, Audit & Reduce Part Pricing
A line-by-line quote breakdown, tolerance cost multiplier matrix, and self-estimation worksheet for engineers who need to predict and optimize CNC part costs before sending RFQs.
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303 vs 304 Stainless Steel: Machining, Cost & When to Use Each
Free-machining 303 versus corrosion-resistant 304 — machinability ratings, welding behavior, and cost per kg compared for CNC parts.

Polycarbonate vs Acrylic: Properties, Machinability & Cost Compared
Impact resistance, optical clarity, CNC feed rates, and cost per sheet — everything you need to choose between PC and PMMA.
Sheet Metal Gauge Thickness Chart: Steel, Aluminum, Stainless & More
Standard gauge-to-mm conversion tables for carbon steel, stainless, aluminum, and galvanized sheet with tolerance ranges.
Counterbore vs Countersink: Differences, Dimensions & When to Use Each
Flat-bottom counterbore vs tapered countersink — dimensional standards, tool selection, and GD&T callout differences.
Copper vs Brass: Properties, Machinability & CNC Applications
Thermal and electrical conductivity, CNC chip formation, and cost compared for prototyping and production parts.
Brass vs Bronze: Properties, Machinability & How to Choose
Zinc-based brass versus tin-based bronze — strength, corrosion resistance, and CNC machining characteristics compared.