Osg 48172253 Micro Drill Bit 0.0996 in Solid Carbide Tialn

Product Description

The OSG 48172253 is a solid carbide micro drill bit designed for precision drilling in demanding production and toolroom applications. Measuring 0.0996 inches (2.53 mm) in diameter with a 140-degree four-facet point, this bit delivers accurate starts and clean entry holes without a center punch. The TiAlN (titanium aluminum nitride) coating improves heat resistance and extends tool life when drilling ferrous metals, stainless steel, and other hard materials. With an overall length of 50 mm and a 3 mm shank, it fits standard micro-drill chucks and collet-style holders. This bit is well suited for machinists, tool-and-die makers, and precision fabricators working in CNC or manual drill press environments.

The OSG 48172253 fits applications where tight-tolerance hole diameters and consistent drill life are critical. It performs in dry or minimum-quantity lubrication (MQL) setups. The right-hand cut and four-facet point geometry reduce walking and improve chip evacuation in small-diameter hole work. Typical use cases include aerospace component drilling, medical device manufacturing, electronics enclosures, and precision mold-and-die work where a 0.0996-inch hole diameter is specified. The 14 mm flute length accommodates shallow to moderate depth-to-diameter ratios common in these applications.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard and abrasive materials
• TiAlN coating improves high-temperature performance and extends cutting life
• 140-degree four-facet point geometry reduces walking and improves hole entry accuracy
• Right-hand cut with standard 3 mm shank for broad holder compatibility
• 14 mm flute length suits shallow to moderate depth drilling in micro-diameter applications
• No coolant-through requirement — compatible with dry and MQL machining setups

Compatibility

Designed for use in standard 3 mm collet chucks, micro-drill holders, and CNC machining center tooling systems that accept a 3 mm shank diameter. Verify spindle speed and feed rate recommendations from OSG Series 5330 tooling data for the specific workpiece material before use.

Installation Notes

Installation and operation should be performed by qualified machinists familiar with micro-drill tooling. Ensure the shank is fully seated and properly torqued in the collet or chuck before spindle engagement. Micro-diameter carbide drills are brittle — avoid side loading, interrupted cuts without proper feed reduction, and runout exceeding manufacturer tolerance. Inspect the cutting edges under magnification before each use to confirm the drill is free of chips or coating damage.