Parlec ER40-0750 ER40 Collet 3/4 Inch

Product Description

The PARLEC ER40-0750 is an ER40 series collet sized for a 0.75 inch (3/4 inch) nominal tool shank. It provides secure, concentric clamping in ER40-compatible collet chucks and tool holders used in CNC machining centers, milling machines, lathes, and drilling applications. The collet has an overall length of 1.811 inches and an overall diameter of 1.614 inches, keeping it within the standard ER40 dimensional envelope. Minimum collet capacity is 0.711 inches, giving a usable clamping range appropriate for the 3/4 inch size class. Weighing 0.52 pounds, this is a precision-ground workholding component installed by machinists and CNC setup technicians.

This collet is suited for general-purpose metal cutting operations in production and job-shop environments. It fits any ER40 collet chuck or toolholder body that accepts the standard ER40 taper profile. Typical applications include end mill holding, drill holding, and reamer holding where a 0.75 inch shank diameter is required. It is appropriate for both light-duty finishing cuts and moderate material removal operations across ferrous and non-ferrous workpieces.

Key Features

• ER40 series collet for 0.75 inch nominal shank diameter
• Overall length of 1.811 inches fits standard ER40 chuck geometry
• Minimum collet capacity of 0.711 inches for precise clamping range
• Overall diameter of 1.614 inches within the ER40 taper envelope
• Lightweight at 0.52 pounds for easy handling during tool changes

Compatibility

Designed as a direct-fit replacement or addition for any ER40-compatible collet chuck or toolholder accepting the standard ER40 taper profile.

Installation Notes

Installation is performed by machinists or CNC setup technicians with the machine spindle powered down and locked out per facility lockout/tagout procedures. The collet should be seated fully into the ER40 nut before threading onto the chuck body. Inspect the collet bore and seating surfaces for debris or damage before each use. Do not exceed the rated clamping range to avoid collet deformation or loss of tool concentricity.