Our primary business is renting tools to the gunsmithing trade. Average invoice is under $50 We are an internet and mail order business. 4D Reamer Rentals has over 1100 finish chamber reamers in stock. Calibers ranging from 17 caliber up to 50 BMG. We stock both factory standard SAAMI calibers and Wildcat calibers along with headspace gauges for each caliber. Tooling for Rifles, Pistols, Shotgun chambers, shotgun choke tooling & forcing cone reamers, along with many popular gunsmithing tools are all available. Our tools are inspected before each rental to assure you of the highest quality tools. We are frequently asked how we are able to keep our reamers so sharp. The answer is simple, vigilant inspections. Repeat customers are the lifeblood of a rental business, so we strive to earn our client trust through quality tools and service. Our reamers are manufactured by all of the big name reamer makers in the firearms industry, the makers also take care of sharpening our reamers. Our staff has over 25 years professional gunsmithing experience, which sets us apart from our competitors in our ability to answer question and help solve problems. We endeavor to make the ordering process as painless as possible. Our web site is a fully interactive shopping cart, allowing the client to collect the items they need while browsing. We also accept orders via phone, fax, and snail mail.