NOTE: Due to market conditions, we are not offering our Stainless Steel Tumbling Media at this time. Thank you.
Stainless Steel Tumbling Media by guntap is the premier tumbling media to clean, deburr, and burnish all types of metal parts, especially brass cartridges used by handloaders. The pins can be used to clean brass cases with any primer pocket or flash hole size without fear of having jammed pins.
The key feature is the unique dimension of the pin media – 0.047” diameter by 0.255” length (tolerance < ±5%). guntap only offers this size pin since it does not get jammed in primer pockets or flash holes, making the clean-up process quick and easy.
Although the pins are compatible with almost all common brass cartridges, certain cartridges that use a 25 caliber or 6.5mm diameter projectile can have some pins stuck sideways inside the neck. Keeping cartridges unsized when cleaning will help mitigate this issue. Stuck pins don’t always occur, but good handloading practice dictates that all cartridges should be inspected prior to loading.
Product Specifications
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The Ultimate Combo with Brass Shine Detergent
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Usage Directions
Although each tumbling batch is unique, the below 4-step system provides general directions for getting started when using guntap Stainless Steel Tumbling Media and Brass Shine Detergent in a rotary tumbler with a 1 gallon capacity. If you have a 1 quart tumbler, you can reduce the amount of detergent to one teaspoon. For larger tumblers (e.g. cement mixers, PVC pipe, etc..), one to two tablespoons per gallon of water is recommended. As you perform more cleanings with the pins, you’ll be able to fine tune the variables to reach the optimal result in the least amount of time. *Do not exceed the tumbler’s maximum weight capacity otherwise premature motor failure may occur.
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The 4-Step System
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Step 1Place the stainless steel pins in the tumbling drum, along with your brass cartridges (or other metal parts), one tablespoon of Brass Shine, and enough water to fill the drum halfway |
Step 2Turn on the tumbler and let run for at least 45 minutes for relatively clean cartridges/parts, or up to 2 hours for heavily soiled cartridges/parts |
Step 3Turn off the tumbler and check to see if additional cleaning time is needed (replacing the water with more detergent may be necessary if the water appears very dirty) |
Step 4Once clean, thoroughly rinse the cartridges/parts, dry, and store in a sealed container, preferably with a desiccant to prevent oxidation or corrosion |
Some common points to note about guntap’s Stainless Steel Tumbling Media:
- When determining how much media to purchase for a rotary tumbler, a rough guideline is to use 5 pounds of media per 1 gallon of drum volume. For quart-size drums, 1 to 1.5 pounds of media is sufficient. For 1.5 cubic foot cement mixers, 50 pounds is needed at an absolute minimum.
- Using stainless steel pins in vibratory tumblers is not recommend unless it has an industrial grade motor with a water-tight drum. The amount of media can vary greatly, so some experimentation is needed. For magnetic tumblers, refer to the tumbler’s user manual for guidelines.
- guntap Stainless Steel Tumbling Media must meet or exceed the tight tolerances set on the diameter (<0.0005″) and length (<±5%) otherwise the entire batch is rejected. The batches of media undergo dozens of tests each day and each pouch is labeled with the associated lot number. Other manufacturers have loose tolerances, no lot numbers, and most of the time, don’t perform any testing on their product.
- guntap’s media with 0.047″ diameter pins prevents jamming in cartridge flash holes. Media with 0.041″ pins will get jammed side-by-side in the flash hole, and can be very difficult to extract.
- guntap Stainless Steel Tumbling Media will not rust, even when left wet or submerged in water for extended periods of time. The only time rust will appear is with ferrous contamination. This is typically the result of cleaning carbon steel parts, exposed carbon steel surfaces on the inside of the tumbling drum, or accidental magnetic pick up of carbon steel items when retrieving pins from the floor. This does not affect the cleaning performance of the media.
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