• Brand: Seco
• Model Number: C4-391.5675-25052
• Minimum Collet Capacity (Decimal Inch): 0.0394"
• Maximum Collet Capacity (Decimal Inch): 0.6299"
• Collet Nut Diameter (mm): 42
• Nose Diameter (mm): 42
• Balanced to (RPM): 20000

If not stocked at Sowa, typically ships in 1-2 days (subject to supplier's product availability).