Osg 3300161 Micro Drill Bit 1.61 Mm Solid Carbide Tialn

Product Description

The OSG 3300161 is a solid carbide micro drill bit designed for high-precision small-diameter drilling in demanding production and toolroom environments. Built to Series 5330 specifications, it features a 1.61 mm (0.0634 inch) cutting diameter and a 140-degree split point geometry that reduces walking and thrust force at entry. The TiAlN coating extends tool life in hard and abrasive materials by providing heat resistance and lubricity at the cutting edge. At 42 mm overall length with a 3 mm shank, this bit is sized for use in CNC machining centers, drill presses, and high-speed spindles requiring precise micro-hole generation.

This drill bit is suited for precision machining applications in aerospace, medical device, electronics, and general metalworking where tight hole tolerances and small feature sizes are required. The right-hand cut orientation makes it compatible with standard spindle rotation. Machinists and tool-and-die professionals working with ferrous alloys, stainless steel, titanium, and hardened materials will find the TiAlN coating and solid carbide substrate well matched to those workpiece demands. It is sold and packaged individually.

Key Features

• 1.61 mm (0.0634 inch) cutting diameter for micro-hole precision
• Solid carbide substrate provides rigidity and wear resistance in hard materials
• TiAlN coating increases heat resistance and extends tool life in abrasive and ferrous applications
• 140-degree point angle reduces entry thrust and minimizes drill walk
• Right-hand cut for standard CNC and manual spindle operation
• 3 mm shank diameter for compatibility with standard collets and chucks

Compatibility

Designed as an OEM-style precision drill for use in standard 3 mm collet chucks and drill chucks on CNC machining centers, drill presses, and high-speed spindles requiring micro-diameter tooling.

Installation Notes

Installation and use should be performed by a qualified machinist familiar with micro-diameter tooling protocols. Ensure the spindle and workholding are fully secured and the machine is at a safe stop before changing tooling. Micro drill bits are sensitive to runout — verify collet and chuck concentricity before operation to avoid premature breakage. Follow machine manufacturer feed and speed recommendations for the workpiece material and drill diameter; do not exceed rated spindle parameters.