Osg 650034811 Screw Machine Drill Bit 8.86mm Carbide

Product Description

The OSG 650034811 is a solid carbide screw machine length drill bit designed for high-performance drilling in demanding metalworking applications. With an 8.86 mm diameter, a 140-degree R-thinned point, and an EgiAs coating, this bit delivers precise entry geometry and extended tool life when cutting through tough workpiece materials. The overall length of 101 mm and a flute length of 45 mm make it well suited for stub-length drilling where rigidity and accuracy are priorities. A 10 mm straight-cylindrical shank provides secure clamping in standard drill chucks or toolholders. Two spiral flutes with a regular helix evacuate chips efficiently, reducing heat buildup and maintaining bore quality across the full cut depth. This bit is intended for installation and use by machinists and tool-and-die professionals working on CNC and manual machine platforms.

The OSG 650034811 is built for drilling steel, alloy steel, cast iron, titanium, and titanium alloys in both production and job-shop environments. Its 3xD flute-to-diameter ratio suits short-hole drilling cycles on vertical machining centers, drill presses, and turret lathes. The coolant-through design supports internal coolant delivery when the toolholder and spindle supply is available, helping to flush chips and manage cutting temperatures at depth. The tapered web configuration with R-thinned point geometry reduces thrust force at drill entry, which is especially beneficial when machining harder alloys. This bit fits within the OSG Series 6500 product family.

Key Features

• Solid carbide construction for rigidity and heat resistance in ferrous and titanium alloys
• EgiAs coating extends surface hardness and wear resistance for longer tool life
• 140-degree R-thinned point reduces entry thrust and improves self-centering accuracy
• Coolant-through design compatible with internal coolant delivery systems
• Screw machine (stub) length provides maximum rigidity in short-reach applications
• Right-hand cut with regular spiral flutes for efficient chip evacuation

Compatibility

Designed as an OEM-style replacement and production drill bit within the OSG Series 6500 line. Primary workpiece materials include steel, alloy steel, cast iron, titanium, and titanium alloy. Compatible with any toolholder accepting a 10 mm straight-cylindrical shank.

Installation Notes

Installation should be performed by a qualified machinist. Ensure the spindle is fully stopped and locked out before changing tooling. Seat the shank fully and evenly in the toolholder or chuck before tightening to manufacturer-specified clamping torque for the toolholder type in use. Verify coolant-through passages are clear if using internal coolant delivery. Do not exceed the recommended cutting parameters for the workpiece material and machine spindle rating.