Accupro 784548 Tg/pg 75 Collet 0.4063 Inch Bore

Product Description

The ACCUPRO 784548 is a standard single angle collet in the TG/PG 75 series, designed for use in TG75 and PG75 collet chuck toolholding systems on CNC machining centers and manual milling machines. It accepts a 0.4063 inch (13/32 inch) bore diameter and delivers a total indicated runout (TIR) of 0.00078 inches, providing the concentricity control required for precision milling, drilling, and reaming operations. The collet measures 1.8440 inches in overall length with a maximum body diameter of 1.063 inches. It is installed by machinists and toolroom technicians as part of a collet chuck assembly.

This collet is suited for production and toolroom environments where accurate tool holding at small-to-mid bore sizes is required. The TG/PG 75 series is a common toolholding standard on knee mills, vertical machining centers, and horizontal machining centers across both job shop and production floor settings. The 13/32 inch bore size accommodates a wide range of standard shank cutting tools including end mills, drill blanks, and reamers with matching shank diameters.

Key Features

• 0.4063 inch (13/32 inch) bore diameter for standard shank tooling
• TIR of 0.00078 inches for precise concentricity and reduced tool runout
• Maximum body diameter of 1.063 inches fits TG75 and PG75 collet chucks
• Overall length of 1.8440 inches for consistent tool projection
• Single angle collet design for straightforward clamping and release

Compatibility

Designed for use with TG75 and PG75 series collet chuck toolholders requiring a 0.4063 inch bore collet.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Before changing collets, ensure the machine spindle is fully stopped, the control is in an e-stop or safe state, and power to the spindle drive is off. Collets should be inspected for wear, nicks, or debris on the seating taper before installation, as surface damage will negatively affect TIR. Tighten the collet chuck nut to the toolholder manufacturer's recommended procedure using the appropriate spanner wrench or torque wrench fixture.