What it is

Thumler’s Tumbler is a first-party lapidary equipment supplier whose official shop (thumlerstumbler.com) sells Thumler’s-branded rotary rock tumblers (MP-1, Model T, A-R1, A-R2, AR-6, A-R12, Model B), Ultra-Vibe / UV vibratory tumblers (UV-10, UV-18, UV-45), replacement barrels, motors, belts, and parts, rock-polishing grit packs, and 1 lb bags of tumbling rough. The official About page says it supplies rock polishers, rock tumblers, case polishers, and Ultra-Vibe vibratory tumblers used by serious hobbyists, laboratories, schools, and industry, and the site header states “Proudly Made In The USA.” It is not a membership gem club and not a teaching school.

Who it’s for

Rock tumbling hobbyists, rockhounds, lapidary clubs, schools, and small shops that want maker-direct Thumler’s tumblers, replacement parts, and grit ordered from the official online store — including owners of older Thumler’s machines who need barrels, belts, shafts, or motors.

Why it’s listed

This is a first-party lapidary supplier with a printed Flemington, NJ store address, business hours, and official product pages carrying on-page dollar prices — not a scraped directory card, not Amazon, and not an affiliate storefront.

Store / contact (Contact and About pages — checked 2026-09-25): 256 US Highway 202/31 N, Flemington, NJ 08822. Hours: Monday–Friday 10:00 a.m.–4:00 p.m. ET. Phone 253-833-2310. Email [email protected].
Sample rotary tumbler prices (official product pages — checked today): A-R1 Rotary Rock Tumbler — $189.99; A-R2 Rotary Rock Tumbler (two barrels) — $209.99; AR-6 9 Pound Rock Tumbler — $239.99; A-R12 Rock Tumbler — $274.99; Model B Heavy Duty 15# Rock Tumbler 1550RPM — $339.99; Model B 3000RPM High Speed — $379.99. Beginner MP-1 and Model T Kit tumblers listed at $129.99 and $149.99.
Sample vibratory tumbler prices (checked today): UV-10 Industrial Vibratory Tumbler — $399.00; Industrial UV-18 — $499.00 (pre-order); UV-45 — $699.00 (pre-order).
Sample grit / rough prices (checked today): #115 Rock Polishing Grit Pack — $34.99; Grit Pack for #100 & #102 — $19.99; Grit Pack for #130 or #140 — $49.99; Coarse Grit 1 lb — $11.99; Brazil Agate 1 lb — $9.99.
Tumblers collection URL (checked today): https://www.thumlerstumbler.com/collections/tumblers

Hours and list prices above are what the official shop pages showed on the check date. Pre-order flags, used-unit listings, and prices change. Use the live product page and cart before treating any figure as fixed.

Official URL

https://www.thumlerstumbler.com/

Tumblers: https://www.thumlerstumbler.com/collections/tumblers

A-R1 Rotary Rock Tumbler: https://www.thumlerstumbler.com/products/thumlers-tumbler-a-r1-rotary-rock-tumbler

Grit: https://www.thumlerstumbler.com/collections/grit

Contact: https://www.thumlerstumbler.com/pages/contact

Location

Store (Contact page — checked 2026-09-25): 256 US Highway 202/31 N, Flemington, NJ 08822. Monday–Friday 10:00 a.m.–4:00 p.m. ET. Phone 253-833-2310. Email [email protected].

This is a manufacturer-brand / mail-order supply identity. Do not treat it as a membership gem-club workshop or a class campus.

Notes

Category is Suppliers. First-party rock-tumbler brand shop with official shop URL and printed prices. Not a Clubs gem society and not a Workshops teaching program.
Sample prices (A-R1 $189.99, AR-6 $239.99, A-R12 $274.99, Model B $339.99, UV-10 $399.00, #115 grit pack $34.99, and others above) are transcribed from official product pages checked on 2026-09-25 and may change; confirm live SKU, stock, and cart total before ordering.
The printed phone number carries a 253 (Washington) area code while the store address is Flemington, NJ — both are as shown on the official Contact page.
Some product URLs carry legacy “tru-square-metal-products” handles, and the MP-1 / Model T product URLs appear swapped relative to their on-page titles; prices here follow the on-page product titles.
The shop also lists used/refurbished units (e.g., USED A-R12 $229.00); those are not cited as standard list prices.
First-party logo saved as thumlers-tumbler.jpg (from the thumlerstumbler.com Shopify CDN, flattened to JPG; small 110 px source).
Not affiliated with Lapidary Plaza.
No Lapidary Plaza contact, purchase, booking, or publication action was taken.

FAQ

Q: Where is Thumler’s Tumbler, and how do I contact the shop?
A: Official Contact page (checked 2026-09-25): 256 US Highway 202/31 N, Flemington, NJ 08822; Monday–Friday 10:00 a.m.–4:00 p.m. ET; phone 253-833-2310; [email protected].

Q: What tumbler prices were printed today?
A: Official product pages checked 2026-09-25: A-R1 $189.99; A-R2 $209.99; AR-6 $239.99; A-R12 $274.99; Model B 1550RPM $339.99; UV-10 Industrial Vibratory $399.00. Confirm the live product page; pre-order and stock status change.

Q: Does Thumler’s Tumbler run classes or a club?
A: No. The official site is a shop for tumblers, parts, grit, and tumbling rough. Thumler’s Tumbler is listed here as a Suppliers entry (equipment with an official shop URL), not as a Clubs meeting organization or a Workshops class program.