Osg 630056111 Carbide Screw Machine Drill Bit 9/16 in

Product Description

The OSG 630056111 is a solid carbide screw machine length drill bit designed for high-performance drilling in ferrous materials. It measures 9/16 inch (0.5625 inch) in diameter with a 140-degree split point angle and an overall length of 4.5276 inches (115 mm). The two-flute regular spiral design with a straight cylindrical shank and R-thinned, tapered web delivers clean entry and efficient chip evacuation in demanding production environments. A multi-layer coating adds surface hardness and wear resistance. This bit is intended for machinists, tool-and-die professionals, and industrial maintenance technicians working on CNC or manual drilling equipment.

The 630056111 is suited for screw machine length applications where a shorter, more rigid tool profile is required. Its primary workpiece materials are steel, alloy steel, and cast iron, making it a strong fit for general metalworking, automotive component machining, and structural fabrication. The 2xD flute-to-diameter ratio supports controlled chip removal at standard drilling depths typical of screw machine work. The Series 6300 designation places it within OSG high-performance carbide drilling product lines.

Key Features

• Solid carbide construction for rigidity and wear resistance in ferrous materials
• 140-degree drill point angle reduces thrust and walking on entry
• R-thinned, tapered web improves penetration and reduces center pressure
• Multi-layer coating extends tool life in abrasive and high-speed applications
• Straight cylindrical shank compatible with standard drill chucks and collets
• Screw machine length profile provides added rigidity over jobber-length bits

Compatibility

Designed for use in steel, alloy steel, and cast iron workpieces. Compatible with standard straight-shank drill chucks and collets sized for 9/16 inch diameter tooling on CNC machining centers, drill presses, and screw machines.

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the machine powered off and locked out per applicable safety procedures. Ensure the shank is fully seated and clamped in the chuck or collet to the manufacturer-recommended holding depth before operation. Coolant-through is not supported on this bit; apply external cutting fluid appropriate for the workpiece material. Inspect the cutting edges for chipping or wear before each use and replace if the point geometry is compromised.