Kennametal 1528424 Indexable Insert Drill 2.5xd 69.9mm

Product Description

The KENNAMETAL 1528424 is an indexable insert drill designed for production drilling applications in metal fabrication and machining environments. Built on the DFT series platform, this drill accepts two DFT1105 indexable inserts and delivers a maximum drill depth of 6.88 inches at a 2.5xD depth-to-diameter ratio. The nominal drill diameter is 69.9 mm with a maximum drill diameter capability of 77.47 mm (3.05 inches). The 2-inch straight shank features a Weldon flat and flange interface for secure toolholder engagement. Coolant-through capability supports chip evacuation and extended insert life in demanding materials. This tool is intended for use by machinists and tool-and-die professionals operating CNC machining centers and drill presses.

The 1528424 is suited for general-purpose drilling in steel and ferrous materials on horizontal and vertical machining centers. The DFT series design is optimized for applications requiring consistent hole quality at mid-range depths in production environments. The Weldon flat and flange shank style accommodates standard 2-inch toolholder bores. Axial concentric coolant entry (Style Code 1) directs coolant flow to the cutting zone, making this drill appropriate for both through-coolant and flooded coolant setups in shops running high-cycle drilling programs.

Key Features

• DFT series platform accepts two DFT1105. indexable inserts for fast changeover without regrinding
• Maximum drill depth of 6.88 inches at a 2.5xD depth-to-diameter ratio
• 69.9 mm nominal drill diameter with maximum diameter capability of 77.47 mm
• Coolant-through design with axial concentric entry for effective chip evacuation
• Weldon flat and flange straight shank for rigid, repeatable toolholder mounting
• Right-hand cutting direction; steel tool body construction
• Body side coolant hole thread size 1/8-27; shank end coolant hole thread size 1/4-18

Compatibility

Compatible with DFT-style indexable drill inserts, specifically DFT1105. insert size code. Insert size is 0.458 x 0.1941 inches (11.63 x 4.93 mm). Insert lock screw is M5.5-0.9 x 9.5 T20. This tool is designed for use in standard 2-inch bore toolholders accepting a Weldon flat and flange shank interface within the KENNAMETAL DFT series drill body family.

Installation Notes

Installation and setup should be performed by a qualified machinist following the machine tool manufacturer's toolholder torque and runout specifications. Ensure the machine spindle is fully stopped and the control is placed in an e-stop or lockout state before mounting or removing the drill body or inserts. Verify insert seating and lock screw engagement before initiating a cut, and confirm coolant supply lines are connected and pressure is appropriate for the application. Do not exceed the rated maximum drill depth or diameter range for this body.