Hertel K008564AS Straight Flute Tap 5/8-11 Unc Bottoming Hss

Product Description

The HERTEL K008564AS is a straight flute bottoming tap designed to cut internal threads in through-holes and blind holes where maximum thread depth is required. Built from high-speed steel with a bright, uncoated finish, it cuts a 5/8-11 UNC right-hand thread to a 2B class of fit with an H5 thread limit. The 4-flute straight design provides chip control and stability in a range of workpiece materials. With a thread length of 1-13/16 inches and an overall length of 3-13/16 inches, this tap is sized for standard machine and hand tapping applications. Machinists, toolroom technicians, and maintenance professionals use this tap in production and repair work.

This tap is suited for threading ferrous and non-ferrous metals in general metalworking, maintenance, repair, and manufacturing environments. The bottoming chamfer, which features a very short lead of 1-2 threads, allows threading to the bottom of blind holes where standard or plug taps cannot reach full thread depth. It is appropriate for both manual hand tapping and low-speed machine tapping operations on drill presses and tapping machines.

Key Features

• Bottoming chamfer for threading to the bottom of blind holes
• 5/8-11 UNC thread form to 2B class of fit with H5 thread limit
• 4 straight flutes for chip control and tap stability during cutting
• High-speed steel construction for durability across a range of metals
• Bright, uncoated finish suitable for use with standard cutting fluids
• Right-hand thread direction for standard tapping operations

Compatibility

Designed as a standard replacement or production tap for any application requiring a 5/8-11 UNC 2B bottoming tap with H5 thread limit tolerance.

Installation Notes

This tap should be installed by qualified machinists or toolroom personnel. Always secure the workpiece and ensure the tap is properly aligned with the pre-drilled hole before starting to prevent tap breakage. Use appropriate cutting fluid for the workpiece material and back the tap off periodically to break and clear chips. Follow shop safety practices and relevant OSHA machine tool standards when operating tapping equipment.