Kennametal 1533981 Replaceable-tip Drill 25.68-26mm 5xd

Product Description

The KENNAMETAL 1533981 is a replaceable-tip drill body in the KSEM series, designed for precision hole-making in metalworking and machining operations. It accepts KSEM1011 insert tips at an Insert Seat Size 5, allowing worn or damaged cutting edges to be swapped without replacing the entire drill body. The straight-cylindrical shank measures 31.75 mm in diameter and 82.55 mm in length, providing secure clamping in compatible toolholders. Through-coolant capability, with a coolant hole diameter of 4.00 mm, delivers cutting fluid directly to the cutting zone to extend tip life and improve chip evacuation at depth. Licensed machinists and CNC programmers installing precision drilling tooling will find this body ready for immediate production use.

This drill body is suited for production machining environments where consistent, repeatable hole diameters between 25.68 mm and 26.00 mm are required. The 5xD depth-to-diameter ratio supports maximum drill depths up to 128.52 mm, placing it firmly in the intermediate deep-hole range for structural, aerospace, and general metalworking applications. Its straight-cylindrical shank suits vertical machining centers, horizontal machining centers, and multi-axis CNC platforms equipped with compatible toolholder bores.

Key Features

• Accepts KSEM1011 replaceable insert tips at Insert Seat Size 5 for cost-effective tip changes
• Through-coolant design with 4.00 mm coolant hole delivers fluid directly to the cutting edge
• 5xD depth ratio supports drilling to 128.52 mm maximum depth
• Straight-cylindrical shank at 31.75 mm diameter fits standard CNC toolholders
• Overall length of 254 mm with a 167.39 mm flute length for extended reach applications
• Part of the KSEM series, offering a consistent insert platform across multiple drill body sizes

Compatibility

Compatible with KSEM1011 replaceable drill tip inserts at Insert Seat Size 5. Designed as a drill body within the KSEM series replaceable-tip drill platform.

Installation Notes

Installation should be performed by a qualified machinist or CNC tooling technician. Ensure the machine spindle is fully stopped and the toolholder is de-energized before mounting or removing the drill body. Verify that the toolholder bore matches the 31.75 mm straight-cylindrical shank diameter and that proper clamping torque is applied per the toolholder manufacturer specifications. Confirm through-coolant supply connections are seated and leak-free before initiating a drilling cycle.