Kennametal 3022347 Indexable Insert Drill 4xd 3/4in

Product Description

The KENNAMETAL 3022347 is a DFR-series indexable insert drill designed for general-purpose drilling applications in metal cutting operations. Built with a steel body and accepting two DFR-style inserts, this drill achieves a maximum drill depth of 3 inches (76.20 mm) at a 4xD depth-to-diameter ratio. The 3/4 inch nominal cutting diameter reaches a maximum drill diameter of 0.7894 inches (20.07 mm). A 1-inch Weldon Flat and Flange shank provides secure, rigid mounting in CNC machining centers and manual drill presses. Coolant-through capability is supported via axial concentric entry, keeping the cutting zone clear and extending insert life during production runs. Licensed machinists and toolroom technicians are the primary installers of this tooling.

This indexable drill is suited for right-hand drilling in general machining environments, including job shops and production facilities handling ferrous and non-ferrous materials. The DFR insert system uses insert size code 0302, with individual inserts measuring 0.3429 x 0.2362 x 0.1134 inches (8.71 x 6.00 x 2.88 mm), secured by M2.2-0.45x5.2 T7 torx lock screws. The tool body length is 4.0170 inches with a flute length of 3.0000 inches and an overall length of 7.0170 inches. This configuration is a practical choice for through-hole and blind-hole drilling where consistent chip evacuation and repeatable positioning are required.

Key Features

• 4xD depth-to-diameter ratio with 3 inch maximum drill depth (76.20 mm)
• Accepts 2 DFR-style indexable inserts, insert size code 0302
• Coolant-through design with axial concentric entry for effective chip and heat management
• 1-inch Weldon Flat and Flange shank for rigid, repeatable tool holding
• Right-hand cutting direction; general-purpose tool performance rating
• Body side coolant hole thread size 1/8-27; shank end coolant hole thread size 1/4-18

Compatibility

Compatible with DFR-style insert size code 0302 (insert compatibility code DFR0302.). Designed for use in toolholders and spindles accepting a 1-inch Weldon Flat and Flange shank. Insert lock screw specification is M2.2-0.45x5.2 T7.

Installation Notes

Installation and insert indexing should be performed by qualified machinists following the machine tool builder guidelines and applicable shop safety procedures. Power down and lock out the machine spindle before changing inserts or mounting the drill body. Use the correct T7 torx driver for the insert lock screws and do not exceed the recommended torque range specified in the KENNAMETAL DFR tooling documentation. Verify coolant line connections at the shank end (1/4-18) and body side (1/8-27) ports before initiating a cut.