Cleveland C55236 Hand Tap 9/16-12 Unc Bottoming Tin Hss

Product Description

The CLEVELAND C55236 is a 9/16-12 UNC bottoming hand tap designed for cutting internal threads in blind holes and through-holes. It is ground from high speed steel (HSS) and coated with titanium nitride (TiN) for extended tool life and reduced friction against the workpiece. The 4-flute straight-flute geometry provides rigidity and clean chip control in a wide range of metalworking applications. With a thread limit of H3 and a Class 2B fit, this tap produces threads to standard tolerance for general mechanical assembly. It is sized for use in manual tapping operations by machinists, maintenance technicians, and toolroom professionals.

This tap is suited for blind hole and through-hole threading operations in alloy steel, carbon steel, aluminum, and free-machining stainless steel. The bottoming chamfer allows threads to be cut close to the bottom of a blind hole, making it the preferred choice for close-tolerance applications where full thread depth is required. It is part of the Cleveland Series 1003TN and is intended for hand-tapping setups, though it may also be used in low-speed tapping fixtures.

Key Features

• Bottoming chamfer for threading close to the bottom of blind holes
• TiN coating reduces friction and extends service life across ferrous and non-ferrous materials
• H3 thread limit with Class 2B fit for standard tolerance internal threads
• 4-flute straight-flute design for rigidity and chip control
• Right-hand thread direction, UNC thread form
• Compatible with alloy steel, aluminum, carbon steel, and free-machining stainless steel

Compatibility

Designed for blind hole and through-hole threading in alloy steel, aluminum, carbon steel, and free-machining stainless steel per the Cleveland Series 1003TN product line specifications.

Installation Notes

This tap is installed by machinists and maintenance technicians using a standard tap wrench or T-handle. Always use appropriate cutting fluid for the workpiece material to reduce heat and extend tap life. Ensure the tap is started square to the hole to avoid thread misalignment or tap breakage. Follow applicable shop safety procedures and secure the workpiece before beginning hand tapping.