Bristle Type: Crimped Wire. ✔ Secure 1/4" Hex Shank - Fits all drills (4500 RPM max) without slipping like round shanks. 🛠 Locking Hex Shank - No spin-out during heavy use. Shank Type: 1/4" Hex. ✔ Complete 9-Piece Kit - Includes 4 wire wheels, 3 cup brushes & 2 end brushes for all jobs.
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