Parlec B40-75SC3 Collet Chuck BT40 Tg PG75 Single Angle

Product Description

The PARLEC B40-75SC3 is a single angle collet chuck designed for precision CNC machining applications. Built on a BT40 taper shank, it accepts TG and PG75 series collets and covers a capacity range from 0.031 inches (0.79 mm) up to 0.750 inches. The chuck features through-spindle coolant delivery, directing cutting fluid directly to the tool tip for improved chip evacuation and tool life. Projection measures 2.75 inches with an overall length of 5.325 inches and a total indicator runout (TIR) of 0.0002 inches, making it suitable for tight-tolerance work. This toolholder is used and installed by CNC machinists and toolroom technicians.

This collet chuck is suited for vertical and horizontal machining centers equipped with BT40 spindles. The TG and PG75 collet system is a widely adopted single angle collet standard, commonly found in production milling, drilling, and light reaming operations. Through-spindle coolant compatibility makes it a practical choice for high-speed operations where flood coolant alone is insufficient. The 2.75-inch projection provides clearance for workpiece features and fixtures in typical setups.

Key Features

• BT40 taper shank for compatibility with BT40-spindle machining centers
• Accepts TG and PG75 series single angle collets
• Collet capacity range: 0.031 inches to 0.750 inches
• Through-spindle coolant delivery for direct tool-tip cooling
• TIR of 0.0002 inches for high-precision runout control
• 2.75-inch projection with 5.325-inch overall length

Compatibility

Designed for use with BT40-spindle CNC machining centers and accepts TG series and PG75 series single angle collets.

Installation Notes

Installation and tool changes should be performed by a qualified CNC machinist or toolroom technician with the machine in an E-stop or powered-down state and spindle fully stopped. Use the appropriate BT40 pull stud and a calibrated torque wrench per the machine tool manufacturer specifications when securing the retention knob. Verify TIR after seating with a dial test indicator before committing to a production run. Confirm through-coolant fittings and spindle coolant passages are clear and properly sealed before enabling coolant flow.