UM-TYPE ER-25 COLLET CHUCK NUT (3900-0690)

UM-TYPE ER-25 COLLET CHUCK NUT (3900-0690) (SKU: 3900-0690)

UM-Type ER-25 Collect Chuck Nut

• Balanced to 18,000 RPM
• Tolerance is .0003″ Maximum
• Material is 42 CrMo
• Hardness is HRC 50-52
• Thread Tolerance Class is 4H-Class
• Thread is M32 X 1.5
• D is 42 mm
• L is 20 mm

Specifications

• UM-Type ER-25 Collect Chuck Nut
• Balanced to 18,000 RPM
• Tolerance is .0003″ Maximum
• Material is 42 CrMo
• Hardness is HRC 50-52
• Thread Tolerance Class is 4H-Class
• Thread is M32 X 1.5
• D is 42 mm
• L is 20 mm
• Weight: 0.2
• Dimensions: L 3, W 1, H 6

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.