Osg 8595525 Screw Machine Drill Bit 5.25 Mm Tin Hss

Product Description

The OSG 8595525 is a screw machine length drill bit designed for high-performance metal drilling in production and maintenance environments. Built from high-speed steel (HSS) with a titanium nitride (TiN) coating, it delivers extended tool life and reduced friction compared to uncoated HSS bits. The 5.25 mm diameter, 120-degree faceted point and web-thinned tip geometry promote accurate hole entry and reduced thrust force. At 70 mm overall length with a 26 mm flute length, this stub-length bit runs with greater rigidity than jobber-length alternatives, making it well suited for drill press, CNC, and turret lathe applications.

This bit is intended for cutting steel, stainless steel, aluminum, aluminum alloys, and aluminum silicate workpieces. The screw machine length format is a standard choice in production shops where shorter flute-to-diameter ratios improve hole straightness and tool stability. The straight-cylindrical shank at 6 mm diameter fits standard drill chucks and collet systems. It is sold individually and is appropriate for machinists, tool-and-die technicians, and maintenance mechanics working with ferrous and non-ferrous materials.

Key Features

• TiN coating reduces friction and extends cutting edge life on steel and aluminum workpieces
• 120-degree faceted point for precise hole entry and reduced walking on flat and curved surfaces
• Web-thinned, tapered web configuration lowers required thrust force and improves chip clearance
• Screw machine (stub) length at 70 mm OAL provides greater rigidity than jobber-length bits
• Regular spiral, 2-flute design optimized for general-purpose metal cutting
• Drill bit diameter tolerance of plus 0 to minus 0.018 mm for consistent, repeatable hole sizing

Compatibility

Designed for use with standard drill chucks and collet systems accepting a 6 mm straight-cylindrical shank. Suitable for drilling steel, stainless steel, aluminum, aluminum alloy, and aluminum silicate workpieces. Compatible with drill press, CNC machining center, and turret lathe setups.

Installation Notes

Installation and use should be performed by qualified machinists or maintenance technicians familiar with cutting tool safety practices. Secure the straight-cylindrical shank firmly in the chuck or collet before operation, and confirm the spindle speed is appropriate for the workpiece material and bit diameter. Appropriate cutting fluid or coolant is recommended for steel and stainless steel applications to manage heat buildup, even though this bit does not have through-coolant capability. Always wear appropriate eye protection and ensure the workpiece is securely fixtured before starting the cut.