Osg 61546 Screw Machine Drill Bit 0.1811 in Hss Tin

Product Description

The OSG 61546 is a screw machine length drill bit designed for high-performance drilling in metalworking and machining applications. Built from high speed steel with a titanium nitride (TiN) coating, it measures 0.1811 inches (4.60 mm) in diameter with an overall length of 2.677 inches (68.00 mm). The 120-degree faceted point and fast spiral flute geometry promote efficient chip evacuation and accurate entry. A web-thinned, parallel web construction reduces thrust force at the cutting edge. This bit is suited for production drilling environments where cycle times and tool life are critical concerns for machinists and tool crib personnel.

The OSG 61546 is intended for drilling steel, stainless steel, aluminum, aluminum alloy, and aluminum silicate workpieces. Its screw machine length profile - shorter overall than jobber-length bits - provides added rigidity in turret lathes, CNC machining centers, screw machines, and other production drilling setups where chatter and deflection must be minimized. The straight-cylindrical shank fits standard drill chucks and collet systems sized for the 0.2362-inch (6.00 mm) shank diameter.

Key Features

• TiN coating extends tool life and reduces friction on ferrous and non-ferrous materials
• 120-degree faceted point for accurate self-centering and clean entry
• Fast spiral flute promotes aggressive chip evacuation in deeper holes
• Web-thinned parallel web reduces drilling thrust and cutting forces
• Screw machine length body adds rigidity over standard jobber-length bits
• Right-hand cut for use with conventional clockwise-rotating spindles

Compatibility

Rated for drilling steel, stainless steel, aluminum, aluminum alloy, and aluminum silicate. Fits drill chucks and collet toolholders accepting a 0.2362-inch (6.00 mm) straight-cylindrical shank. Falls within the OSG Series 1100 drill bit size range of 0.1500 to 0.2000 inches (3.50 to 5.00 mm).

Installation Notes

Installation and use should be performed by qualified machinists or toolroom personnel familiar with rotating cutting tool safety. Secure the shank fully in the chuck or collet before operating the spindle. Verify spindle speed and feed rate are appropriate for the workpiece material and hole diameter before beginning the cut. Do not exceed the bit's rated material applications, and inspect the cutting edges for wear or chipping before each use.