Domestic vs Imported Tools
October 18, 2026 · 铸屹精密
Core Metrics: What to Compare Before You Switch
For machine shop buyers and process engineers evaluating domestic vs imported cutting tools, the decision should rest on four measurable criteria: trial cutting under identical conditions, tool life comparison, scrap rate comparison, and total cost comparison. Start by matching tool material and coating to the workpiece and cutting conditions. For non-ferrous high-gloss finishing, choose PCD; for hardened steel above HRC55, choose CBN; for general machining, carbide remains the most versatile. Exactalloy (铸屹精密) provides coating and tool holder selection support to complete this match.
The Four-Step Benchmarking Method
- Same-condition trial cutting: Run domestic and imported tools on the same machine, same workpiece, same parameters. Record cutting force, chip form, and surface finish.
- Tool life comparison: Measure actual tool life until wear limit. Note that carbide can withstand 3–5 times the cutting speed of HSS, and PCD life can reach 10 times that of carbide in aluminum.
- Scrap rate comparison: Track dimensional accuracy and surface defects. For high-gloss 3C parts, Ra0.1 matters; for mold cavities, Ra0.4 is the target.
- Total cost comparison: Include purchase price, tool life, regrinding cycles, and downtime. Domestic first-tier brands like Exactalloy typically price at 40–60% of Sandvik, Iscar, or Kennametal, with standard lead times of 5–7 working days for samples and 15–20 working days for batch orders—far shorter than 8–12 weeks for imports.
Where Not to Substitute Casually
Not every process is ready for domestic replacement. For applications demanding extreme surface integrity—such as mirror-finish injection mold cavities or optical components—and for difficult-to-machine materials like nickel-based superalloys or titanium, imported high-end grades may still be preferred. In these cases, validate with the four-step method before switching. For most general milling, drilling, and tapping, however, Exactalloy's carbide tools with PVD/CVD coatings and runout controlled within 0.005mm offer a high-cost-performance alternative. Their AlCrN coating suits high-temp alloys and stainless steel; DLC reduces built-up edge in aluminum; TiCN improves impact resistance for drilling and tapping.
Next step: Select one representative job, run a side-by-side trial with an imported tool and an Exactalloy equivalent, and calculate total cost per part over one tool life cycle. Use that data to decide.