Osg 9599034 Screw Machine Drill Bit 3.40 Mm Xpm

Product Description

The OSG 9599034 is a screw machine length drill bit designed for high-performance drilling in steel, alloy steel, cast iron, and nickel alloy workpieces. It measures 3.40 mm in diameter with a 130-degree split point angle and an overall length of 52.00 mm (approximately 2.05 inches). The bit is manufactured from XPM high-speed steel and features a V coating for improved wear resistance and tool life. The X-thinned web reduces thrust forces at the cutting edge, making it well suited for production drilling environments where precision and tool durability are priorities. Licensed machinists, tool-and-die workers, and maintenance mechanics are the primary users of this bit.

This drill bit is sized for screw machine length applications, which means a shorter overall length and increased rigidity compared to jobber-length bits. That rigidity improves accuracy in short-hole drilling on CNC machining centers, drill presses, and screw machines. The 3xD flute-to-diameter ratio and tapered web configuration support chip evacuation in the ferrous and nickel alloy materials listed for this series. It is well matched to production environments where consistent hole quality in tough materials is required across high cycle counts.

Key Features

• 3.40 mm cutting diameter with a tolerance of plus 0 to minus 0.018 mm for tight hole accuracy
• 130-degree standard point angle with X-thinned web to reduce entry thrust
• XPM high-speed steel construction with V coating for extended wear resistance in ferrous materials
• Screw machine length (52.00 mm OAL) provides added rigidity over jobber-length equivalents
• Right-hand cut, regular spiral flute, straight-cylindrical shank (4.00 mm shank diameter)
• No coolant-through requirement — compatible with conventional dry or mist-lubricated drilling setups

Compatibility

Designed for drilling steel, alloy steel, cast iron, and nickel alloy workpieces. Part of OSG Series 1900 screw machine length drill bits covering the 0.00 mm to 3.50 mm diameter range.

Installation Notes

Install in a compatible chuck or collet sized for a 4.00 mm straight-cylindrical shank before powering the machine. Ensure the spindle is fully stopped and the machine is locked out before changing tooling. Follow the machine manufacturer and OSG Series 1900 recommended speeds and feeds for the specific workpiece material — do not exceed rated parameters for XPM-grade tooling. Proper alignment of the drill axis with the intended hole center is critical at this diameter to avoid deflection or breakage.