Osg 8712450 Extra Length Solid Carbide Drill Bit 4.50mm

Product Description

The OSG 8712450 is a solid carbide extra length drill bit engineered for precision drilling in demanding industrial and metalworking applications. Measuring 4.50mm (0.1772 inches) in diameter with an overall length of 140mm (5.51 inches) and a flute length of 85mm (3.35 inches), this bit delivers the reach needed for deep-hole work where standard-length tooling falls short. The 140-degree split point reduces thrust and improves entry accuracy, while the X-Thinned web geometry minimizes walking on entry. Applied with an EgiAs finish, the bit is suited for high-speed, high-precision drilling cycles. It is typically installed by machinists and CNC operators in production and toolroom environments.

This extra length drill bit is designed for deep-hole drilling operations in materials including steel, stainless steel, cast iron, and similar workpiece materials common in manufacturing and precision machining. The 15xD flute-to-diameter ratio provides extended reach without sacrificing chip evacuation. Coolant-through capability supports continuous cutting cycles in high-output CNC machining centers and drill presses where internal coolant delivery is available. Right-hand cutting direction makes it compatible with conventional spindle rotation on standard machine tools.

Key Features

• Solid carbide construction provides rigidity and wear resistance for hard-material drilling
• 140-degree drill point angle reduces entry thrust and improves hole location accuracy
• X-Thinned web geometry minimizes cutting resistance and material deformation at entry
• Coolant-through design supports high-speed, deep-hole drilling with internal coolant delivery
• EgiAs finish enhances surface hardness and tool life in abrasive cutting conditions
• Straight-cylindrical shank with 6.00mm shank diameter fits standard drill chucks and collet holders

Compatibility

Designed as an OEM-style replacement and standard tooling option for CNC machining centers, drill presses, and multi-spindle equipment accepting straight-cylindrical shank drill bits with a 6.00mm shank diameter.

Installation Notes

Installation and use should be performed by qualified machinists or CNC operators familiar with cutting tool setup and machine operation. Ensure the spindle is fully stopped and the machine is powered down or in a safe state before loading or changing tooling. Secure the shank fully within the collet or chuck to the recommended grip length before engaging the workpiece. Verify coolant supply lines are clear and delivering adequate flow when using the coolant-through feature during operation.