Kennametal 1126040 2mm Hex Driver Ksem Modular Drill

Product Description

The KENNAMETAL 1126040 is a 2 mm hex driver designed for use with indexable modular drilling systems. It provides precise torque transfer when seating and removing lock screws on indexable toolholders, keeping inserts properly secured during high-speed drilling operations. The driver is compatible with the KSEM modular drill series and Whistle Notch toolholder configurations. With a blade length of 8.27 inches, it gives the technician sufficient reach into deep toolholder bodies without compromising control. This driver is a dedicated service tool intended for machinists, toolroom technicians, and CNC setup personnel working with indexable drilling systems.

This driver is used in toolroom and machine shop environments where KSEM-series modular drills are in service. It is appropriate for both initial insert installation and routine insert indexing on CNC machining centers, turning centers with live tooling, and dedicated drill presses running KSEM toolholders. The 2 mm hex drive matches the lock screw socket size used across compatible KSEM insert and toolholder assemblies.

Key Features

• 2 mm hex drive sized for KSEM lock screws
• 8.27-inch blade length for reach into deep toolholder bores
• Compatible with KSEM and Whistle Notch toolholder styles
• Works with lock screws 191.924 and 364.011
• Compatible with inserts KSEM 0797, KSEM 0875, and TPGX 1303ZPR
• Dedicated service tool — no improvised wrench substitution needed

Compatibility

Compatible with KSEM and Whistle Notch series toolholders. Works with lock screws 191.924 and 364.011. Confirmed insert compatibility includes KSEM 0797, KSEM 0875, and TPGX 1303ZPR.

Installation Notes

This driver is installed and used by machinists or toolroom technicians performing insert changes on indexable modular drill assemblies. Always ensure the spindle is fully stopped and the machine is in a safe, locked-out state before indexing or replacing inserts. Apply only hand torque through the driver — do not use power tools or cheater bars on this hex driver. Follow the toolholder manufacturer torque guidelines for the specific lock screw in use.