M.a. Ford 20031250 Carbide Die Drill Bit 5/16 in

Product Description

The M.A. FORD 20031250 is a solid carbide, straight-flute die drill bit engineered for precision holemaking in demanding materials. It carries a 5/16-inch diameter with a 135-degree split point and web-thinned geometry that reduces thrust and improves chip evacuation on entry. The uncoated carbide construction delivers hardness and thermal resistance needed when drilling cast iron, stainless steel, steel, and non-ferrous metals. With an overall length of 2.5 inches and a 0.75-inch flute, this short, rigid form factor is well suited to die work, fixture drilling, and close-tolerance applications where runout and deflection must be minimized. Right-hand cutting direction. Diameter tolerance is held to +0.0000 to -0.0005 inches.

The 20031250 is designed for holemaking in ferrous and non-ferrous workpiece materials including cast iron, stainless steel, alloy steel, austenitic stainless steel, high-temperature alloys, titanium, hardened materials, ceramic, and glass. The short 2.5-inch overall length and straight-flute geometry make it a practical choice for machining centers, CNC mills, and drill presses where stub-length rigidity is required. Machinists working in tool and die, aerospace, and precision manufacturing will find this geometry appropriate for interrupted cuts and hard-material entry where standard jobber-length bits lack stiffness.

Key Features

• Solid carbide construction for hardness and thermal stability in difficult workpiece materials
• 135-degree split point with web-thinned geometry reduces cutting thrust and improves centering
• Straight-flute design suited to brittle and hard materials such as cast iron, ceramic, and glass
• Diameter tolerance of +0.0000 to -0.0005 inches supports close-fit holemaking
• Uncoated finish maintains sharp edge geometry without coating buildup on smaller diameters
• Conforms to DIN standards; right-hand cutting, 2-flute configuration

Compatibility

Designed as an OEM-style holemaking tool for use in CNC machining centers, drill presses, and manual mills accepting a 5/16-inch straight shank. Compatible with primary workpiece materials including cast iron, non-ferrous metal, stainless steel, and steel, and secondary materials including alloy steel, austenitic stainless steel, ceramic, glass, hardened materials, high-temperature alloys, and titanium.

Installation Notes

Installation and use should be performed by a qualified machinist familiar with carbide tooling. Secure the shank fully in a collet or drill chuck rated for the spindle speed appropriate to the workpiece material and bit diameter before starting the cut. Carbide is brittle and susceptible to fracture from side loading, improper runout, or impact - do not use in a loose or worn chuck. Coolant through is not supported on this tool; apply external coolant or cutting fluid as required by the workpiece material.