Description
Comparison points and tradeoffs
When comparing Transmission Gear Kit for R8 Mini Mill – Steel Gear Kit with 2-Speed Intermediate Shaft Gear, LittleMachineShop.com (3449) with other Rebuild Kits options, use this source-backed detail as the primary discriminator: Category: Replacement Parts / Transmission & Drive Train / Transmissions & Parts / Rebuild Kits.
Use this second fact to evaluate the tradeoff: Upgrade your mini mill’s performance and ease of use with this essential replacement set. A third point to compare across alternatives is: With this replacement set, you’ll no longer have to worry about the inconvenience and cost of replacing broken gears inside the hard-to-reach headstock.
Alternative-selection boundary
Choose an alternative when its stated identifiers, application, package, or specifications better match the requirement; no unverified competitor claim is introduced here.
Complete source-backed product details
Enhance the longevity and reliability of your mini mill with our R8 metal transmission gear replacement set. This set includes three gears – Spindle gears 1 & 2 and a 2-speed intermediate shaft gear – that are crucial for the smooth operation of the headstock. These gears are made of durable metal, ensuring they can withstand the rigors of regular use. With this replacement set, you’ll no longer have to worry about the inconvenience and cost of replacing broken gears inside the hard-to-reach headstock. Upgrade your mini mill’s performance and ease of use with this essential replacement set.
Source product highlights
- Compatibility: This product is designed to work across a broad range of metalworking mini mills with R8 spindles. Please look at our images to see a list of compatible machines. This list contains are machines where compatibility is ensured. If you don’t see your machine in the list, it is almost certain this product will NOT WORK on your machine.
- Durable: Once this steel gear kit is installed on your mini mill, you will no longer have to worry about breaking the hard-to-replace gears inside the headstock.
- Included Items: This Kit includes 1 2-Speed Intermediate Shaft, Metal, P/N 3451, 1 R8 Spindle No. 1, Mini Mill, Metal, P/N 3457, and 1 R8 Spindle No. 2, Mini Mill, Metal, P/N 3456.
- About Us: LittleMachineShop.com is a small U.S. business specializing in sourcing and selling quality machines, tooling, spare parts, and accessories for home shop machinists and small machine shops. Additionally, we sell upgrades and accessories for many of the leading brands. Whenever possible, we work with, and promote, other small US machinists and machine shops who sell innovative products. With direct US based customer support from our knowledgeable team, we stand behind all our products.
- Contact Us: As home shop machinist and consumers, we understand how information aids in your buying decision. We also know how frustrating it is if you cannot contact a company. If you have any questions, please feel to reach out to us and we would be happy to help. Should you have any doubts before buying a product, contact us to discuss compatibility or features. In the event you need to return something, we also ask for the courtesy of a contact to see if we can eliminate any possible issues.




Steve443 –
good to have metal gear set. Plastic gears break too easily. Great upgrade.
Joey Kent –
Great Product and Fast Shipping!
Paul B. –
Worth every penny, wish the mil machine came standard with these.
Ketakatzen –
First set of gears had zome kind impurity inclusion in the gear right near a tooth, littlemachineshop was super fast to make it right, didn’t ask any questions or waste any time shipping a replacement, in fact by the time I went to see if I had gotten a response from them, the replacement arrived that same day. Overall great relations and quality product. Well worth the money spent upgrading from those plastic gears from original
marv –
Product was just as described
Mike –
Liked it