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OTEC Walnut Shell Extra Fine Media H1/500 - Otto Frei
Otec

OTEC Walnut Shell Extra Fine Media H1/500 1 Lb Pack

Part # 147.696 7 In Stock Weight <0.1 lb / <5 g
$10.85
Volume pricing
Total qty Discount Per unit You save
1 – 2 – $10.85 –
3 – 4 5% off $10.31 $0.54
5 – 9 10% off $9.76 $1.09
10 + 12% off $9.55 $1.30
Add 2 more for 5% off, saves another $0.54 each.

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Description

OTEC Walnut Shell Media H1/500 is an extra-fine, dry polishing media designed for achieving mirror finishes on non-ferrous jewelry metals as well as titanium and steel alloys. Each batch arrives pre-impregnated with polishing paste, so no additional compound is required until the 3rd–4th cycle. Use it as the ultimate final step in a dry polishing sequence with OTEC high-speed dry disc finishers or other compatible dry polishing equipment.

Features

  • Extra-fine walnut shell granulate engineered for the final dry polishing stage
  • Pre-impregnated with polishing paste — no added compound needed until the 3rd–4th use
  • Suitable for non-ferrous metals, titanium, and steel alloys
  • Compatible with OTEC dry disc finishers and most dry polishing systems
  • Delivers bright, high-gloss mirror finishes on rings, pendants, findings, and small components

Specifications

Media Code H1/500
Grain Size 0.2–0.4 mm (≈ 0.008–0.016 in)
Use Stage Ultimate final step for dry polishing
Compound Pre-impregnated; refresh after 3rd–4th cycle
Typical Cycle Time (OTEC Disc Finisher) ~2 hours (longer in standard vibratory tumblers)
Max Workpiece Weight 7–8 g (≈ 0.25–0.28 oz)
Pack Size 1 lb (≈ 0.45 kg)

Notes

  • When finishing multiple parts in an OTEC dry disc finisher, suspend pieces using a drag or fixture attachment to prevent part-to-part contact that can cause dents or scratches.
  • Once the built-in compound is depleted—typically after the 3rd–4th cycle—refresh with OTEC P6 Polishing Paste Compound.

What's Included

  • OTEC Walnut Shell Media H1/500, 1 lb pack

Specifications

Brand
Otec
Part #
147.696
Type
Tumblers & Media
Country of Origin
Germany
Dimensions
5.5 in x 5.5 in x 2 in
Media Code
H1/500
Grain Size
0.2–0.4 mm (≈ 0.008–0.016 in)
Use Stage
Ultimate final step for dry polishing
Compound
Pre-impregnated; refresh after 3rd–4th cycle
Typical Cycle Time (OTEC Disc Finisher)
~2 hours (longer in standard vibratory tumblers)
Max Workpiece Weight
7–8 g (≈ 0.25–0.28 oz)
Pack Size
1 lb (≈ 0.45 kg)
California Prop 65 Warning California Prop 65 Warning:
Cancer and Reproductive Harm. www.P65warnings.ca.gov.

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