Sumitomo SumiDrill WDX2250D3S150 Drill
The Sumitomo SumiDrill WDX2250D3S150 2.250 is a solid carbide drilling tool designed for CNC machining. It belongs to the SumiDrill series, which is known for accurate hole making and stable performance. The 2.250 indicates the nominal drilling diameter. The WDX2250D3S150 reference identifies the tool geometry and size. This drill is suitable for production drilling, maintenance work and general metal cutting where repeatable hole quality is required.
Solid Carbide Construction
Solid carbide drills offer high hardness and wear resistance. They can operate at higher cutting speeds than many high speed steel drills. This helps reduce cycle time and improve productivity. Carbide also maintains edge sharpness, which supports accurate hole diameter and good surface finish. However, carbide is brittle, so correct setup and stable machining conditions are important.
Drill Geometry
The WDX2250D3S150 geometry is designed for efficient chip evacuation and stable cutting. Flutes guide chips away from the cutting edge. Point angle and web design affect centering and thrust force. The tool may include internal cooling channels to deliver coolant near the cutting zone. Proper coolant flow helps control heat and improves chip removal, especially in deeper holes.
Applications
SumiDrill tools are used in automotive, hydraulic, mold, pump, valve and general engineering industries. They can drill steel, cast iron, stainless steel and other materials depending on grade and coating. The 2.250 size is suitable for larger hole applications where rigidity and power are available. Correct speed and feed are essential for tool life and hole quality.
Machine and Holder Requirements
Solid carbide drills require rigid machine tools and accurate tool holders. Runout should be minimized to avoid chipping and oversized holes. The holder should provide strong clamping and good coolant delivery. The machine spindle should have sufficient power and stability for the drill diameter. Pre-drilling or piloting may be required in some materials or deep hole operations.
Cutting Parameters
Cutting speed and feed depend on workpiece material, drill diameter and machine conditions. Manufacturers provide recommended starting values. Users should adjust parameters based on chip formation, noise, vibration and hole quality. Excessive speed can cause rapid wear, while too low a feed can work harden some materials. Coolant type and pressure also affect performance.
Maintenance and Handling
Drills should be inspected for wear, chipping and built up edge. A worn drill can cause poor hole finish, oversize holes or excessive heat. Resharpening should be performed with proper equipment and geometry. Tools should be stored in protective cases to prevent edge damage. Cleaning before storage helps prevent corrosion and contamination.
Conclusion
The Sumitomo SumiDrill WDX2250D3S150 2.250 is a solid carbide drilling tool for accurate and efficient hole making. It supports stable chip evacuation and wear resistance in demanding CNC operations. Correct holder setup, cutting parameters and maintenance help users achieve reliable results.
