Parlec ER40-0315 ER40 Collet 0.315 in 1.811 in Oal

Product Description

The PARLEC ER40-0315 is an ER40 series collet designed to hold workpieces and cutting tools in compatible ER40 collet chucks. With a collet size of 0.315 inches (8.00 mm) and an overall length of 1.811 inches, this collet provides secure, concentric clamping for milling, drilling, and tapping operations. The minimum collet capacity is 0.276 inches (7.0 mm), giving the collet a working range suited to a variety of shank diameters. Machinists and toolroom technicians install this collet in CNC machining centers, manual mills, and drilling stations where ER40 toolholding is specified.

The ER40-0315 is used in machine shop and production environments that require reliable ER40 toolholding. It is appropriate for both roughing and finishing operations where accurate tool positioning and runout control are critical. The 1.614-inch overall diameter fits standard ER40 chuck bores. This collet is a common choice for shops running a wide range of shank sizes within the ER40 system.

Key Features

• ER40 collet series for broad compatibility with ER40 chucks and toolholders
• Collet size of 0.315 inches (8.00 mm) with a minimum capacity of 0.276 inches (7.0 mm)
• Overall length of 1.811 inches for standard ER40 chuck engagement
• Overall diameter of 1.614 inches matching standard ER40 bore dimensions
• Suitable for milling, drilling, and tapping applications

Compatibility

Designed for use with ER40 collet chucks and toolholders that accept the ER40 collet series standard.

Installation Notes

Installation is performed by a machinist or toolroom technician. Before changing collets, power down the spindle and confirm the machine is in a safe, locked-out state per shop lockout/tagout procedures. Insert the collet into the ER40 nut before threading the nut onto the chuck body, and tighten using the appropriate ER collet wrench to the chuck manufacturer's specification. Inspect the collet for wear or damage before each use, and replace if the clamping surfaces show scoring or out-of-round wear.