Osg 215-0890 Screw Machine Drill Bit 0.089 in Carbide

Product Description

The OSG 215-0890 is a screw machine length drill bit designed for precision drilling in metalworking and machining applications. Built from solid carbide, it features a 135-degree split point with web thinning for fast penetration and reduced walking on entry. The 0.089 inch (wire size 43) diameter and straight-cylindrical shank make it compatible with standard drill chucks and screw machine setups. With a slow spiral flute geometry and tapered web configuration, this bit is engineered for general-purpose performance in a range of ferrous and non-ferrous materials. It weighs 0.011 pounds and is sold as a single unit.

This drill bit is suited for use in CNC screw machines, drill presses, and manual machining centers where tight-tolerance, small-diameter holes are required. Primary workpiece materials include steel, alloy steel, stainless steel, cast iron, aluminum silicate, nickel alloy, titanium, and titanium alloy. The short screw machine length body provides rigidity and reduces deflection in production drilling environments where hole accuracy and repeatability are critical.

Key Features

• Solid carbide construction for hardness and wear resistance in metalworking applications
• 135-degree drill point with web thinning and tapered web configuration for fast, accurate starts
• Slow spiral flute design promotes efficient chip evacuation in difficult-to-machine alloys
• Bright/uncoated finish suitable for a wide range of general-purpose machining materials
• Right-hand cut, straight-cylindrical shank compatible with standard toolholders and chucks
• Diameter tolerance held to +0 to -0.013 mm for consistent, repeatable hole sizing

Compatibility

Designed as an OEM-style replacement or direct-use drill bit for screw machine and general-purpose metalworking applications. Suitable for use with standard straight-shank drill chucks across CNC and manual machine platforms. Primary workpiece materials listed by the manufacturer include steel, alloy steel, stainless steel, cast iron, aluminum silicate, nickel alloy, titanium, and titanium alloy.

Installation Notes

Installation and use of this drill bit should be performed by a qualified machinist or tooling technician familiar with cutting tool setup and machine operation. Ensure the spindle and toolholder are fully de-energized and stationary before inserting or removing the bit. Verify chuck or collet runout is within acceptable limits to avoid premature tool breakage at this small diameter. Follow machine manufacturer guidelines for feed rate and spindle speed when drilling hard or abrasive alloys.