Seco 75042068 ER16 Collet 6 Mm Bore

Product Description

The SECO 75042068 is an ER16 series collet designed to hold 6 mm diameter tooling in compatible ER16 collet chucks. It delivers a total indicated runout (TIR) of 0.01 mm (0.000394 inches), providing the precision required for milling, drilling, reaming, and tapping applications. The collet measures 27 mm overall length with a 17 mm overall diameter. ER16 collets are a standard workholding component used by machinists and CNC operators in production and job-shop environments. This collet is installed and serviced by qualified machine tool operators or toolroom technicians following established toolholder maintenance procedures.

The SECO 75042068 is suited for use in CNC machining centers, manual milling machines, and drilling equipment that accept ER16 collet chucks. It is appropriate for light to medium cutting operations where accurate tool concentricity is required. Typical applications include production milling, precision drilling, and high-speed spindle work where consistent TIR performance directly affects surface finish and tool life. This collet does not support through-coolant delivery.

Key Features

• ER16 collet series with 6 mm bore for standard metric tooling
• 0.01 mm TIR for consistent tool concentricity
• 27 mm overall length fits standard ER16 collet chuck depth requirements
• 17 mm overall diameter
• No through-coolant configuration — suited for dry or flood coolant setups
• Sold individually (package quantity of 1)

Compatibility

Designed as an OEM-style replacement collet for use in standard ER16 collet chuck systems accepting 6 mm bore collets.

Installation Notes

ER16 collets are installed and removed by qualified machine tool operators or toolroom technicians. Power down and de-energize the spindle drive completely before changing collets. Use a proper ER collet nut and torque wrench rated for ER16 systems — never use an impact wrench on collet nuts. Inspect the collet bore and chuck taper for chips or damage before seating the collet to avoid compromised runout.