BT40 4.00" ER20 Collet Chuck

• DIN Coolant option - standard
• All Ground Body
• Factory Balanced to save spindle life, tool life and increased productivity
• Threaded through holes for a back-up screw (tool stop) or coolant through when removed
• Wrench not included
• BT30/BT40 Premium balanced to 30,000 rpm
• BT50 Premium balanced to 25,000 rpm

Specifications

Minimum Collet Capacity (Decimal Inch)

0.039

Maximum Collet Capacity (Decimal Inch)

0.511

Balanced to (RPM)

30000

Collet Nut Diameter (Decimal Inch)

1.38

Seat Depth (Decimal Inch)

1.06

Tightening Torque (Nm)

81.3

Collet System

ER

Collet Series

ER20

Shank Type

Taper Shank

Taper Size

BT40

Projection (Decimal Inch)

4