CNC Machining Surface Finishes


        CNC Machining Surface Finishes

              We can generate instant quotes for 10+ surface finishes.


As machined (Ra 3.2μm / Ra 126μin)

This is our standard finish. Parts are machined and deburred, sharp edges are chamfered.



Smooth machining (Ra 1.6μm / Ra 63μin)

Smooth machining is like an ‘As machined’ finish but with slightly less evident machine marks. Parts are machined at a lower feed, no hand polishing is applied.


Polishing (Ra 0.8μm / Ra 32μin)

Parts are manually polished in multiple directions. Surface is smooth and slightly reflective.



Brushed (Ra 1.2μm / Ra 47μin)

Parts are brushed manually with #400 - 600 grit sandpaper in order to reduce machining marks. Ideal to slightly reduce the roughness of the finish.


Bead blasted
Parts are bead blasted with glass beads which results in a grainy texture and reduced machining marks.


Powder coated
Powder coating is a strong, wear-resistant finish that is compatible with all metal materials.


Black oxide
Applicable on steels, black oxide is a conversion coating used to improve corrosion resistance and minimize light reflection


Electroless Nickel Plating
Parts are machined to Ra1.6µm and electroless nickel plated. Ideal for wear abrasion and corrosion resistance, not for cosmetic purposes.



As machined + Anodized type II
Parts are anodized (type II) directly after machining. The most cost-effective anodizing option; ideal for non-cosmetic, functional parts. Used to improve wear and corrosion resistance.


Bead Blasted + Anodized type II (Glossy)
Parts are bead blasted, anodized type II and bright dipped. Results in glossy color. Ideal for cosmetic parts needing an increase in corrosion resistance.


Brushed + Anodized type II (Glossy)
Parts are manually brushed with fine sandpaper to attenuate the machining marks and then anodized. Ideal for increasing the corrosion resistance of the part. Typically results in a glossy aspect.


Bead blasted + Anodized type II (Matte)
Parts are bead blasted and anodized type II. Ideal for increasing the corrosion resistance of the part. Results in naturally matte colors. For glossy colors, please select the bead blasted + glossy anodizing option.


As machined + Anodized type III (Hardcoat)
Parts are machined and an anodizing type III coating is directly applied to the surface. Ideal to improve corrosion and wear resistance of components.



Brushed + Electropolished (Ra 0.8μm / Ra 32μin)

Parts are brushed and electropolished. Ideal to reduce the micro-roughness of the part.


Chromate Conversion Coating
Parts are machined and a chromate conversion coating is applied. Ideal to increase the corrosion resistance of the part while maintaining its conductive properties. RoHS compliant.













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