Hertel 87005 Plug Hand Pulley Tap 3/8-16 Unc Hss

Product Description

The HERTEL 87005 is a 3/8-16 UNC plug hand pulley tap ground from high speed steel with a bright finish. It features a 4-flute design and an H3 thread limit, making it suited for threading through-holes and blind holes in a range of workpiece materials. With an overall length of 10 inches, the 87005 provides adequate reach for deep-hole tapping operations. The plug chamfer style — typically 3 to 5 threads of lead — balances starting ease with the ability to tap close to the bottom of a hole. This tap is intended for manual hand-tapping operations where a tap wrench or T-handle is used.

This tap is used in machine shops, maintenance and repair operations, and fabrication environments where 3/8-16 UNC internal threads are required. Common applications include threading steel, iron, aluminum, and similar materials by hand. The plug chamfer configuration makes it a versatile first choice when a single tap style is needed for general threading work. It is appropriate for both production and occasional-use settings.

Key Features

• 3/8-16 UNC thread form for standard unified coarse thread production
• 4-flute design for chip clearance and thread quality
• Plug chamfer for easy starting in through-holes and moderate blind-hole work
• H3 thread limit for controlled fit tolerance in standard applications
• High speed steel construction for durability across a range of materials
• Bright finish with 10-inch overall length for deep-reach hand tapping

Compatibility

Designed for use with standard tap wrenches and T-handle drivers sized for 3/8-inch shank taps producing 3/8-16 UNC internal threads.

Installation Notes

This tap is intended for hand-tapping operations performed by machinists or maintenance technicians. Always use a properly sized tap wrench and apply cutting fluid appropriate to the workpiece material. Back off the tap periodically to break chips and prevent binding. Ensure the starter hole is drilled to the correct tap drill size for 3/8-16 UNC threads before beginning the tapping operation.