BoltClean offers static internal thread cleaning brushes from size M4 up to size M72 that can be used to clean threads on nuts and blind holes. Our static brushes can be used in combination with any type of electric of pneumatic drilling machine. Extensions are available for those applications that require more than the standard shaft length. For maximum durability, our standard brushes are made of high quality stainless steel.
Imperial sizes and different material brushes are available upon request.