Do you want to thoroughly clean out pipes, ports, and hard-to-reach bearing spots? Are you looking to make cleaning kitchens, cars, and machinery easy and enjoyable? Look no further, as we sincerely recommend our 18-pcs bore brush set to meet all your cleaning needs! Features: This set includes a total of 18 brushes with 6 different bristle lengths, providing versatility for various cleaning tasks. The galvanized bore brush shanks are rust-resistant, and the stainless steel twisted wire bristles are incredibly tough, ensuring durability and effectiveness. You can easily attach the brushes with hex shanks to a corresponding driver handle, power drill, or die grinder for convenient cleaning. These brushes are designed for push and pull motion only; please avoid turning them counterclockwise or exceeding 600 rpm to ensure optimal performance and longevity. Specifications: Color: Silver Materials: Stainless Steel Size: 4in Length x 8/10/12/15/17/19mm Number of Items: 18pcs Our 18-piece bore brush set is a comprehensive and versatile cleaning solution, perfect for tackling pipes, ports, bearing dead spots, kitchens, cars, and machinery. The combination of different bristle lengths and durable stainless steel construction with galvanized shanks guarantees efficient and enjoyable cleaning experiences. [Desirable Quantity] We offer you 6 bore brushes with bristle lengths of 8 mm, 10 mm, 12 mm, 15 mm, 17 mm, and 19 mm, 3 of each bristle length. This comprehensive set of 18 brushes ensures that all your cleaning needs are met. [Hex Shank Design] With our 1/4" hex shank design, using these tube cleaning brushes is a breeze compared to traditional screw-type shanks. Easily mount the brushes on a corresponding driver handle, power drill, or die grinder for highly efficient cleaning. [Reliable Material] Our galvanized bore brush shanks are designed to be rust-resistant, guaranteeing their durability. The incredibly tough bristles, made of stainless steel and featuring a twisted wire form, deliver a powerful cleaning effect. [Wide Application] Our bore brush set finds wide application in dusting, rust removal, decay removal, and polishing of tubes, ports, and bearings. It empowers you to thoroughly clean your kitchen, car, or machinery. [Warm Tips] Keep in mind that these stainless steel bore brushes are intended for push and pull motions only. Avoid turning them counterclockwise and refrain from exceeding 600 rpm when using a power drill or die grinder.