Stainless Steel Tumbling Media Pins - 0.047" Diameter, 0.255" Length (4 lb Pack) Created from the highest quality 302/304 stainless steel wire sourced from a US-based steel mill with certificates of conformance<br> Manufactured and packaged in the USA, helping to support the domestic economy, unlike the inferior imported stainless media found elsewhere<br> Ferromagnetic 300-series stainless steel that is attracted by a magnet (but not magnetic itself, nor is it a 400-series stainless), making for easy pick up with a rare earth magnet<br> Virtually unlimited tumbling cycles with brass cartridges, so there&#039;s no need to replenish your media due to breakdown, unlike walnut, corn cob, or ceramic media Your pouch of media will comestuffed with a sample packet of <span class="a-text-bold">guntap&#039;s</span><span class="a-text-bold">Brass Shine Detergent,</span>the all-in-one solution that is superior to thedish detergent + lemon shine concoction (available to purchase in 1lb, 2lb, and 10lb sizes)<br> Made in Texas at <span class="a-text-bold">guntap&#039;s</span>manufacturing facility, <span class="a-text-bold">Brass ShineDetergent</span> contains a proprietary formula developed over many months of cleaning thousands of cartridges<br> Made from biodegradable ingredients, <span class="a-text-bold">guntap&#039;s</span> formulation contains only the necessary ingredients to make your brass (and other metals) as clean as possible with as little foamas possible<br> Works with hard and soft water, <u>no need to add any other chemicals to your tumbler</u> for optimal results 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. Forquart-size drums, 1 to 1.5 pounds of media is sufficient. For 1.5 cubic foot cement mixers, 50 pounds is needed at an absoluteminimum.<br> 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&#039;s user manual for guidelines.<br> <span class="a-text-bold">guntap Stainless Steel Tumbling Media</span> will <u>not</u>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.