Osg 0142601 Spiral Flute Tap 10-32 Unf Bottoming

Product Description

The OSG 0142601 is a spiral flute bottoming tap designed for threading 10-32 UNF holes in demanding materials. Built from powdered metal with a steam oxide coating, it delivers consistent thread quality in applications where standard high-speed steel falls short. The three right-hand spiral flutes with a 15-degree helix angle efficiently evacuate chips upward, making this tap well-suited for blind-hole work. The bottoming chamfer allows threading to the bottom of a hole with minimal unthreaded length remaining. This tap is installed by machinists, maintenance technicians, and toolroom professionals working with precision threaded fastener applications.

The OSG 0142601 is rated for use in alloy steel, stainless steel, hardened steel, titanium, and high-nickel alloys. Its powdered metal construction provides the wear resistance and toughness these materials demand. The bottoming chamfer and spiral flute geometry make it a direct choice for blind holes where chip clearance and full thread depth are both critical. No coolant-through capability is featured, so adequate external lubrication is required during tapping operations.

Key Features

• 10-32 UNF thread form with right-hand thread direction
• Bottoming chamfer for threading to the bottom of blind holes
• 3 right-hand spiral flutes with 15-degree helix angle for upward chip evacuation
• Powdered metal construction for enhanced wear resistance in tough materials
• Steam oxide coating reduces friction and improves lubricity
• H4 thread limit for consistent tolerance control

Compatibility

Designed as an OEM-style replacement tap for 10-32 UNF threading applications in alloy steel, stainless steel, hardened steel, titanium, and high-nickel alloy workpieces.

Installation Notes

This tap is intended for use by qualified machinists or maintenance professionals operating drill presses, CNC machining centers, or tapping machines. Always ensure the workpiece is properly clamped and aligned before tapping. Apply an appropriate cutting fluid or tapping oil suited to the workpiece material before and during use. Do not force the tap or exceed recommended speeds, as breakage in hardened materials is difficult to recover from.