Product Overview These custom spiral-groove brass sleeves are multi-axis CNC machined from high-grade brass alloy stock, engineered to deliver extreme precision down to ±0.008 mm positional tolerance for all helical grooves, internal bores and flange mounting features. The optimized turn-mill composite machining process completes the full part geometry in one single fixturing setup, eliminating misalignment errors across all helical profiles and concentric bore features. Our