They are solid brass, which means they are soft enough to cleaning or deburring with no scrach.
Versatile kit & Commonly used for: Commonly used for cleaning,polishing,deburring of metal wood etc.
Wire wheel and end brushes are designed for easy access into narrow holes and confined areas.Cup brush is used for large area.
1/4" shank fits most drill,4500 Max RPM;Brass wire diameter?0.13mm
Package Included:1Pc x 3" wire wheel brush;1Pcx 2.5"wire wheel brush;1Pc x 2.5"wire Cup Brush;1Pc x 1"end Brush;1Pcx 0.55"end Brush
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Item# : SPM16314762124
Model # : 1