Omega Products ER25 Collet Standard Precision - 10 Micron Run-Out - 13mm - 12mm

Omega ER25 Collet, Standard Precision is built for dependable, repeatable toolholding in CNC milling and precision machining. Designed for ER25 collet chucks, this collet delivers tight, consistent clamping with exceptional concentricity for everyday machining tasks.

Key advantages at a glance

• 10 micron run-out ensures minimal tool runout for smoother cuts, better surface finish, and tighter tolerances on every job.
• Designed for ER25 collet chuck compatibility, giving you a reliable, standard-fit clamping solution across compatible toolholders.
• 13mm - 12mm capacity range accommodates common tool shanks and small-diameter cutters, enabling quick setup for a variety of milling and drilling operations.
• Standard, predictable performance you can count on in routine production work and shop-floor prototyping alike.

Why this matters in real-world machining

Precision start-to-finish matters when you’re engraving fine features, milling pockets with tight tolerances, or drilling holes that demand straight, true geometry. The 10 micron run-out minimizes eccentricity between the tool and workpiece, reducing chatter and deflection. That means cleaner corners, plainer surfaces, and less post-process finishing work—saving time and material costs over the life of your project.

Ideal use scenarios

• High-precision pocketing and contour milling on aluminum and softer steels where concentricity matters most.
• Miniature drilling and boring tasks that require tight run-out control to maintain hole position accuracy.
• Engraving and fine-feature work on small-diameter tools where stability is critical.

What sets this apart

Beyond basic clamping, this ER25 collet prioritizes repeatable accuracy and robust construction. The precision-ground bore and uniform collet segments work in harmony with your ER25 chuck to minimize run-out across cycles, helping you achieve consistent part quality batch after batch. It’s a practical choice for shops that value reliability as much as speed.

Practical tips for best results

• Always clean the collet bore and tool shank before seated locking to ensure even clamping.
• Tighten gradually in a stepped pattern to equalize forces and prevent uneven seating.
• Use the correct tool shank diameter within the 12–13 mm range to maximize grip and minimize slippage.
• Inspect for burrs or nicks on the tool shank and collet surfaces; replace worn parts to maintain true run-out.