Ehlivhall Roughness Comparison Sample for Finish Testing Steel Calibration Test Block with Wooden Case for Lathe Milling Grinding Planer Industrial(Grinding)

Ehlivhall Roughness Comparison Sample for Finish Testing Steel Calibration Test Block with Wooden Case for Lathe Milling Grinding Planer Industrial(Grinding)

• Roughness: For quality sampling in industrial production, this steel comparison test block set includes 4pcs lathe (Ra0.8-6.3um), 4pcs vertical milling (Ra0.8-6.3um), 4pcs flat milling (Ra0.8-6.3um), 4pcs flat grinding (Ra0.-0.8um), 4pcs external grinding (Ra0.-0.8um), 3pcs grinding (Ra0.025-0.um), and 4pcs planer (Ra0.8-6.3um), all stored in a protective wooden box for organized use and long-lasting durability
• Comparison Test Block: Helps efficiently screen roughness defective products without on-site instruments by enabling quick tactile and visual inspection, for verifying finish compliance during batch processing or incoming material checks
• Roughness Test Block: Unifies acceptance standards between suppliers and buyers to reduce disputes caused by measurement variations, especiuseful in manufacturing environments where precise Ra value consistency is required across teams and facilities
• For Roughness Evaluation: Assists in determining if workpieces meet pre-treatment requirements before spraying, electroplating, or coating processes, with clearly labeled samples ranging from coarse to ultra-fine finishes (Ra0.025-6.3um) for accurate reference
• Inspection Gage Solution: Supports teaching and training applications by illustrating the physical state corresponding to different roughness parameters; size 8*6*3cm per sample, steel construction ensures stable over, as shown with slight variation due to and screen settings