Hertel K011222AS Plug Hand Tap 10-24 Unc 4-flute Hss

Product Description

The HERTEL K011222AS is a 10-24 UNC plug hand tap designed for cutting right-hand internal threads in through-holes and blind holes where moderate starting chamfer is acceptable. Manufactured from high speed steel with a bright uncoated finish, this 4-flute straight flute tap delivers clean thread formation in a range of workpiece materials common to trade and maintenance applications. The overall length is 2.375 inches with a 0.875-inch thread length and a shank diameter of 0.194 inches. It carries an H5 thread limit, indicating an oversize tolerance class suited to applications requiring a controlled fit allowance for plating or specific assembly clearances.

This tap is used in machining, maintenance, and fabrication settings where 10-24 UNC threads are required. The plug chamfer, typically 3 to 5 threads, allows the tap to start easily in a pre-drilled hole and is the most common choice for general-purpose tapping in both through-hole and deeper blind-hole work. It is appropriate for use in hand-tapping operations with a tap wrench or in machine setups at controlled feed rates. Trades including mechanical, HVAC equipment fabrication, and general industrial maintenance regularly use this size for fastener thread repair and new thread cutting in sheet metal and light structural components.

Key Features

• 10-24 UNC thread form, right-hand cutting direction
• Plug chamfer for general-purpose through-hole and blind-hole tapping
• High speed steel construction for durability across common workpiece materials
• Bright uncoated finish suitable for use with cutting fluids
• H5 oversize thread limit for controlled fit allowance
• 4-flute straight flute geometry for chip clearance in standard tapping operations

Compatibility

Designed as a standard replacement or supplemental hand tap for any application requiring a 10-24 UNC right-hand internal thread with an H5 tolerance class.

Installation Notes

This tap should be used by machinists or qualified trade personnel familiar with proper tapping technique. Ensure the workpiece is secured and the tap drill hole is sized correctly for 10-24 UNC threads before starting. Apply an appropriate cutting fluid to extend tool life and improve thread quality. Back the tap off periodically to break chips and prevent tap breakage, particularly in blind-hole applications.