Osg 1024802 Straight Flute Tap 10-24 Unc Taper Hss

Product Description

The OSG 1024802 is a straight flute tap designed to cut 10-24 UNC internal threads in a wide range of metals. It features a taper chamfer, four flutes, and a right-hand thread orientation, making it suited for through-hole and entry-level threading operations where chip control is managed by the straight flute geometry. Manufactured from high-speed steel (HSS), the tap provides durability across general-purpose tapping applications. The H3 thread limit ensures consistent tolerance control for 2B and 3B class of fit requirements. Overall length is 2.375 inches with a thread length of 0.875 inches.

This tap is intended for use in machine or hand tapping setups in job shops, maintenance facilities, and production environments. It is suited for tapping aluminum, cast aluminum, cast iron, low-carbon steel, medium-carbon steel, and high-carbon steel. The taper chamfer distributes cutting load across several leading threads, making it a practical choice when starting a tap in a new hole. Licensed machinists, tool and die makers, and maintenance technicians commonly use this tap in both manual and CNC-assisted tapping operations.

Key Features

• 10-24 UNC thread form for standard unified coarse thread applications
• Taper chamfer distributes cutting load for easier thread entry
• Four straight flutes support chip evacuation in through-hole applications
• H3 thread limit meets 2B and 3B class of fit tolerances
• High-speed steel construction for general-purpose metal tapping
• Right-hand thread direction compatible with standard tapping equipment

Compatibility

Compatible with aluminum, cast aluminum, cast iron, high-carbon steel, low-carbon steel, and medium-carbon steel workpiece materials. Designed for use in standard 10-24 UNC tapping applications where a 2B or 3B class of fit is required.

Installation Notes

This tap should be installed in a tap wrench, tapping head, or CNC rigid tapping spindle appropriate for the shank size. Ensure the workpiece is securely fixtured and the tap is aligned perpendicular to the hole before cutting begins. Apply an appropriate cutting fluid for the workpiece material to extend tap life and reduce the risk of breakage. Do not exceed the tap's rated capacity, and back off periodically to break chips when tapping by hand.