Osg 8704740 Taper Length Drill Bit 7.4 Mm Solid Carbide

Product Description

The OSG 8704740 is a solid carbide taper length drill bit designed for precision drilling in demanding industrial and metalworking applications. It features a 140-degree split point angle with X-thinned web geometry, which reduces thrust and improves centering at the start of the cut. The 7.4 mm cutting diameter is paired with a straight cylindrical shank measuring 8.00 mm, making it compatible with standard drill chucks and tool holders. An EgiAs coating provides enhanced wear resistance and heat reduction at the cutting edge. This bit is installed and used by machinists, tool-and-die technicians, and maintenance mechanics working in production or job shop environments.

This drill bit is suited for taper length drilling operations in ferrous and non-ferrous metals, alloys, and other materials where extended flute reach is required beyond standard jobber length. The 81 mm flute length at an 8xD ratio supports chip evacuation in deeper holes. The right-hand spiral flute design and coolant-through capability make it well suited for CNC machining centers and manual drill press setups where through-spindle or through-tool coolant is available. It is packaged and sold individually.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard or abrasive materials
• 140-degree point angle with X-thinned web reduces walking and lowers entry thrust
• EgiAs coating extends tool life and reduces heat buildup at the cutting zone
• Coolant-through design supports internal coolant delivery for deep-hole applications
• 8xD flute-to-diameter ratio provides extended reach with efficient chip clearance
• Straight cylindrical shank fits standard collets and drill chucks without adaptation

Compatibility

Designed as an OEM-style taper length drill bit for use in CNC machining centers, drill presses, and manual machine tools accepting a straight cylindrical shank with an 8.00 mm shank diameter.

Installation Notes

Installation and use should be performed by qualified machinists or tooling technicians familiar with cutting tool setup and machine operation. Secure the shank fully in a properly sized collet or drill chuck before operation, and confirm runout is within acceptable tolerance for the application. Ensure the machine spindle is at a full stop before changing or inspecting the tool. When using coolant-through capability, verify that coolant pressure and flow rate are compatible with the machine spindle and tool holder system.