Parlec B40-18DC3 Collet Chuck BT40 DA180 Through Coolant

Product Description

The PARLEC B40-18DC3 is a double angle collet chuck designed for precision CNC machining applications. It accepts DA180-series collets with a capacity range of 0.0313 to 0.75 inches, covering a wide range of cutting tool shank sizes. The chuck mounts on a BT40 taper shank and delivers a total indicator reading (TIR) of 0.0004 inches, making it suitable for high-accuracy milling, drilling, and reaming operations. Through-spindle coolant is supported, directing coolant directly to the cutting zone. With a 3-inch projection and an overall length of 5.575 inches, this chuck is installed and serviced by CNC machine operators and toolroom machinists.

The B40-18DC3 is intended for use in BT40-spindle machining centers running DA180-series collets. The 3-inch projection provides clearance for workpiece features that require tool reach beyond the spindle face. Through-coolant capability suits materials and operations where chip evacuation and cutting-edge cooling are critical, such as deep-hole drilling or high-speed milling. This chuck is a standard toolholder choice for production and job-shop environments using BT40-compatible machining centers.

Key Features

• DA180 double angle collet system with 0.0313 to 0.75 inches clamping range
• BT40 taper shank for direct spindle mounting on compatible machining centers
• 0.0004 inches TIR for high-precision tool holding
• Through-spindle coolant delivery for improved chip evacuation and tool life
• 3-inch projection with 5.575 inches overall length for reach into deep features
• 1.44 inches nose diameter

Compatibility

Designed for BT40-spindle machining centers using DA180-series double angle collets with shank diameters from 0.0313 to 0.75 inches.

Installation Notes

Installation is performed by a qualified CNC machinist or toolroom technician. Power down and lock out the machine spindle before mounting or removing the toolholder. Use the correct BT40 pull stud and verify it is properly torqued per the machine tool manufacturer specification before use. Inspect the collet and chuck bore for chips or damage before assembly, as contamination directly affects TIR and tool life.