Osg 650037511 Screw Machine Drill Bit 3/8 in Carbide

Product Description

The OSG 650037511 is a screw machine length drill bit designed for high-performance drilling in demanding metalworking applications. Built from solid carbide with a coated finish, this bit runs a 140-degree drill point angle and a right-hand spiral flute configuration with R-thinned web geometry. At 0.3752 inches (9.53 mm) in diameter, it falls within the 3/8-inch size class. The overall length is 106.00 mm (approximately 4.17 inches), and the flute length measures 48.00 mm (approximately 1.89 inches). Coolant-through capability supports heat management during aggressive cuts in hard materials. Licensed machinists and tool-and-die professionals are the typical end users for this series.

The OSG 650037511 is suited for precision drilling in steel, alloy steel, cast iron, titanium, and titanium alloys. Its screw machine length profile makes it appropriate for use in CNC machining centers, drill presses, and turret lathes where rigidity and repeatability matter. The straight-cylindrical shank fits standard collets and chucks sized for 3/8-inch tooling. The 3xD flute-by-diameter ratio keeps the bit stable in short-hole applications. This is a high-performance designation within OSG Series 6500, intended for production environments where tool life and hole quality are critical.

Key Features

• Solid carbide construction with coated finish for extended tool life in ferrous and exotic materials
• 140-degree drill point angle reduces thrust and improves chip formation on hard workpieces
• Coolant-through design delivers coolant directly to the cutting edge for thermal control
• R-thinned, tapered web reduces feed force and centers the bit accurately at entry
• Right-hand cut with regular spiral flute promotes efficient chip evacuation
• Straight-cylindrical shank for broad chuck and collet compatibility

Compatibility

Designed for drilling in steel, alloy steel, cast iron, titanium, and titanium alloy workpieces. Part of OSG Series 6500, sized for applications requiring a 0.3500 to 0.4000 decimal inch (9.50 to 11.00 mm) diameter range.

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the machine powered down and locked out per applicable safety procedures. Ensure the chuck or collet is clean and properly torqued to the manufacturer's specification before running. Coolant-through setups require a compatible spindle supply; confirm system pressure is within the machine's rated range before engaging. Do not exceed the recommended feed and speed parameters for the workpiece material and setup.