What's in the box:

9pcs Brass Coated Wire Brush Wheel and Cup Brush Set with 1/4-Inch Shank 9 Sizes Coated Wire Drill Brush Set Perfect For Removal of Rust Corrosion Paint Universal Fit for Power Drill (3)

Features:
High Performance -- Great for cleaning and removing debris, suit for both metal and wood surfaces, and also works well for weld cleaning, smoothing, oxide/rust removal, and surface preparation and finishing.
Attachs to Most Power Drills -- 1/4 inches quick replacement shanks are used in all types of drills and die grinders 4500 Max RPM.
Premium Wire Construction -- Heavy duty high-carbon coarse wire creates an incredible long lasting design.
High Quality Brush Wheel -- Finest quality brass plated knot wire cup brushes provide hardened steel wire tips with the high speed enable the brushes to separate surface contaminants from base materials.
Versatile Brush Shape -- Wire Cuos Brush, Wire Flat Brush and Wire Pen Brush, mainly used for metal surface decontamination, rust removal and grinding, deburring, polishing, peeling and grinding of non-metallic surface.

Specification:
Product Name: Wire Brush Wheel
Comb: 6 Pack Set / 7 Pack Set / 9 Pack Set
Material: Copper Plated Steel Wire
Shank: 1/4in (6mm)
Shape: Pen Type/ Cup Type/ Flat Type

Packing List:
5 * Pen Type Wire Brush
2 * Cup Type Wire Brush
2 * Flat Type Brush