Kennametal 7030541 Indexable Insert Drill 1.289 in

Product Description

The KENNAMETAL 7030541 is a DFPR-series indexable insert drill designed for through-coolant drilling operations in steel and ferrous materials. The body accepts two DFPR-style carbide inserts and delivers a maximum drill diameter of 1.289 inches with a maximum drill depth of 3.75 inches, giving a 3xD depth-to-diameter ratio. The Weldon flat and flange shank measures 1.5 inches in diameter and seats securely in compatible tool holders on CNC machining centers and drill presses. Right-hand cutting direction is standard. Axial concentric and radial coolant ports keep the cutting zone clear during deep-hole operations. Overall length is 8.648 inches.

This drill body is suited for general-purpose drilling applications in production machining environments. Typical use cases include roughing and semi-finish bore preparation on medium to large machined components where indexable insert tooling reduces cycle time compared to solid-carbide options. The 3xD depth capability covers a wide range of flange, plate, and structural part drilling tasks on horizontal and vertical CNC machining centers. Coolant-through capability via the axial concentric and radial entry ports supports chip evacuation in blind and through-hole applications.

Key Features

• Maximum drill diameter of 1.289 inches with 3xD depth-to-diameter ratio
• Maximum drill depth of 3.75 inches for deep-hole production work
• Accepts two DFPR-style inserts in sizes DFPR110406 (outer) and DFPR120405 (inner)
• Weldon flat and flange shank, 1.5 inches diameter, for positive drive and axial location
• Coolant-through design with axial concentric and radial entry; shank-end coolant port threaded 1/4-18, body-side port threaded 1/8-27
• Insert lock screw M4-0.7 x 8.4 T15 Torx for secure insert retention
• Right-hand cutting direction; steel tool body construction

Compatibility

Compatible insert styles are DFPR110406__O (outer position) and DFPR120405__I (inner position). Compatible insert size codes are 110406 and 120405. Insert dimensions are 0.445 x 0.142 inches (outer) and 0.469 x 0.142 inches (inner). Designed for use with DFPR-series indexable insert tooling systems.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Power down and lock out the spindle before seating or removing inserts or mounting the drill body in the tool holder. Verify shank engagement depth and drive key alignment in the Weldon flat before running. Use the specified T15 Torx driver at the correct seating torque per the insert manufacturer torque chart supplied with the inserts; do not overtighten or substitute non-specified screws.