Accupro 40680027 External Grooving Toolholder Left Hand

Product Description

The ACCUPRO 40680027 is a left-hand external grooving toolholder designed for indexable insert grooving operations on CNC lathes and turning centers. Built to the GMER style in the CI series, it accepts all GD24 style inserts with a 1.5 mm groove width, secured by a screw-holding method for positive, repeatable insert positioning. The shank measures 0.625 inches square, and the overall length is 5 inches, making it a compact yet rigid tool for external groove work. The toolholder body is constructed from steel for durability under continuous turning loads. Installation is handled by machinists and CNC setup technicians working in precision turning applications.

This toolholder is suited for external grooving operations in both production and job-shop environments. Its left-hand configuration with right-hand cutting direction is typical for standard lathe setups where the tool approaches the workpiece from the front. The 23 mm maximum depth of cut and a 1.5 mm fixed groove width make it appropriate for narrow parting and grooving passes on bar stock, shafts, and cylindrical workpieces. Coolant-through capability is not included in this model.

Key Features

• GMER-style CI series external grooving toolholder for indexable insert use
• Left-hand holder with right-hand cutting direction for standard lathe orientation
• Screw clamp insert holding method for secure, repeatable seating
• Compatible with all GD24 style inserts at 1.5 mm width, insert size code 015
• 0.625 inch square shank with 5 inch overall length for rigid tool setup
• Steel construction for strength and wear resistance in production turning

Compatibility

Compatible with all GD24 style inserts with a width of 1.5 mm, insert size code 015. No other specific machine or system compatibility was provided by the manufacturer for this part.

Installation Notes

This toolholder is installed by machinists or CNC setup technicians and should be mounted only after the machine spindle is fully stopped and the machine is placed in a safe, locked-out state. Confirm insert seating and screw torque against machine tool manufacturer guidelines before initiating a cut. Do not exceed the rated maximum depth of cut for the insert and holder combination in use.