[Pack of 12] You will get 12 stainless steel bore brushes in different sizes with bristle lengths of 5/16"(8mm), 11/32"(9mm), 3/8"(10mm),7/16"(11mm), 1/2"(13mm), 5/8"(16mm), 11/16"(18mm),3/4"(19mm), 7/8"(22mm), 1"(25mm),1-1/8"(28mm) and 1-3/16"(30mm). Sufficient quantity and various sizes meet all your cleaning needs.
[High Quality] The shank of our abrasive drill brush is Nickel plated to ensure its excellent rust resistance and durability. The bristles are made of stainless steel and featuring a twisted wire form to make them tougher and more durable for powerful cleaning.
[Universal Hex Shank] The universal 1/4" hex shank design allows this wire brush to easily mount on a driver handle, power drill, or die grinder for efficient cleaning.
[Widely Application] The round wire cleaning bore brush is designed for easy access to narrow holes and narrow areas, widely used in dust removal, rust removal, corrosion removal and polishing of pipes, ports and bearings.
[Warm Tips] Please keep in mind that these stainless steel hole brushes can only be used in push and pull motions. When using a drill or die grinder, avoid turning counterclockwise and do not exceed 600 rpm.