Accupro 777840 DA100 Double Angle Collet Chuck 1 in Shank

Product Description

The ACCUPRO 777840 is a DA100 series double angle collet chuck designed for use on CNC machining centers and milling machines that accept straight-shank toolholders. With a 1 inch shank diameter and an overall length of 7.5 inches, this chuck provides a stable, concentric grip on cutting tools ranging from 3/64 inch minimum to 9/16 inch maximum collet capacity. The 1.658 inch projection from gauge line to collet nose allows clearance for a variety of workpiece setups. Installation and tool changes are performed by qualified machinists and CNC setup technicians as part of standard toolroom or production workflows.

This collet chuck is suited for light to medium-duty milling, drilling, and reaming operations in job shops, production facilities, and tool rooms running CNC vertical or horizontal machining centers. The DA100 collet system is a widely adopted double angle format, and this chuck accepts the full range of DA100 collets to cover the supported capacity range. It is not configured for through-coolant delivery at the collet; coolant supply is through-spindle only.

Key Features

• DA100 double angle collet system for broad tooling compatibility within the supported capacity range
• 1 inch straight shank diameter for direct spindle or toolholder interface
• Collet capacity range from 3/64 inch to 9/16 inch to accommodate varied cutting tool shank sizes
• 1.658 inch projection provides clearance for diverse fixturing and workpiece configurations
• Overall length of 7.5 inches suits standard machining center Z-axis clearances
• No through-coolant at the collet; compatible with through-spindle coolant systems

Compatibility

Designed for use with DA100 series double angle collets. Fits machining centers and milling machines accepting a 1 inch straight shank toolholder interface. Collet nut diameter is 1.060 inches.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician with the spindle fully stopped and the machine in a safe, locked-out state. Confirm the machine spindle bore and drawbar system are compatible with the straight shank diameter before mounting. Torque the collet nut using the appropriate DA100 spanner wrench to the machine or toolholder manufacturer specifications. Inspect the collet and chuck bore for chips or contamination before each tool change to maintain runout accuracy.