Kennametal 4042547 Drill Bit 7/64 in Solid Carbide Tialn

Product Description

The KENNAMETAL 4042547 is a screw machine length (stub) drill bit designed for high-performance drilling in demanding shop and production environments. Built from solid carbide and coated with a multilayer TiAlN finish, this bit handles hard workpiece materials and elevated cutting temperatures without breaking down. The 140-degree split point reduces walking at entry and requires less thrust than standard point geometries. At 1.9685 inches overall length with a 0.6299-inch flute length, this bit is optimized for short, rigid setups where tool deflection must be minimized. It is installed by machinists and tooling technicians on CNC machining centers, drill presses, and screw machines.

This drill bit is suited for stub-length drilling applications in metalworking, production machining, and precision component manufacturing. The 7/64-inch diameter and straight cylindrical shank make it compatible with standard drill chucks and collet systems. The coolant-through design channels cutting fluid directly to the tip, extending tool life and improving chip evacuation in deep or interrupted cuts. It follows DIN 6537K specification, making it interchangeable in tooling setups designed to that standard. Typical applications include drilling ferrous and non-ferrous metals in automotive, aerospace, and general precision machining operations.

Key Features

• Solid carbide construction for rigidity and heat resistance in metal cutting
• Multilayer TiAlN coating extends tool life in high-temperature cutting conditions
• 140-degree standard point angle reduces entry walking and lowers thrust requirements
• Coolant-through design directs fluid to the cutting edge for improved chip evacuation
• Tapered web configuration maintains strength while reducing cutting forces
• DIN 6537K specification for consistent dimensional interchangeability

Compatibility

Designed as an OEM-style replacement and production tooling option for machining setups requiring a 7/64-inch stub-length carbide drill bit with a straight cylindrical shank conforming to DIN 6537K specification. Compatible with standard drill chucks and collet systems accepting a 0.1181-inch shank diameter.

Installation Notes

Installation is performed by machinists and CNC tooling technicians. Ensure the spindle is fully stopped and the machine is powered down or placed in a safe lockout state before changing tooling. Confirm shank seating in the chuck or collet before operation and verify coolant-through passages are clear and connected to the machine coolant supply. Do not exceed the rated maximum drilling depth of 0.4331 inches per pass without retracting to clear chips.