ER-20 7/16″ COOLANT SPRING COLLET (3900-5591)

ER-20 7/16″ COOLANT SPRING COLLET (3900-5591) (SKU: 3900-5591)

ER-20 7/16″ Coolant Spring Collet (3900-5591)

• Designed for use with cylindrical shank tools, not flats
• Cutting tool should be inserted the full length of the collet. If these conditions are not met, coolant leakage may result
• Runout is <= .0005"
• Meets DIN 6499B
• Collapse Range is .433 to .472″
• D1 Major diameter is .830″
• Overall length is 1.230″

Specifications

• Designed for use with cylindrical shank tools, not flats.
• Cutting tool should be inserted the full length of the collet. If these conditions are not met, coolant leakage may result.
• Runout is <= .0005".
• Meets DIN 6499B.
• Collapse Range is .433 to .472″.
• D1 Major diameter is .830″.
• Overall length is 1.230″.
• Weight: 0.1
• Dimensions: L 1, W 1, H 1

Benefits

• Industrial-grade tooling designed for dependable shop performance.
• Supports consistent results when applied with correct setup practices.
• A practical choice for U.S. machine shops and maintenance work.

Recommended use

• Confirm compatibility (size, interface, machine capacity) before ordering.
• Follow safe operating practices and use appropriate PPE.
• Optimize setup rigidity and process parameters for best results.

USA Warehouse Stock — Fast U.S. fulfillment.