Precise Pro-Series High Speed, Balanced BT 40 ER-20 Collet Chuck - 3900-8608

• Made of 20CrMnTi alloy steel
• Electrolysis nickel coating
• Balanced to 18,000 RPM
• Tolerance is .0003" Maximum
• M16x2.0 Drawbar
• Superior Finish & Craftsmanship

For More Precise Pro-Series High Speed, Balanced BT 40 ER Collet Chucks Click Here