Hertel C.E96.S18C Tap Drill Set 18 Piece Hss

Product Description

The HERTEL C.E96.S18C is an 18-piece tap drill set designed for standard hand tapping operations across a range of unified inch thread sizes. Built from high speed steel, both the taps and drills deliver consistent cutting performance on steel, cast iron, aluminum, and other common shop materials. The set covers taps from 6-32 up to 1/2-13 and includes matching drill sizes spanning fractional, letter, and wire gauge designations from 5/16 inches through 27/64 inches. A plug chamfer on the taps allows starting in through-holes or blind holes with adequate clearance. All components store in a metal case for organization and job-site protection.

This set is suited for maintenance, repair, and fabrication environments where technicians need a coordinated tap-and-drill pairing without sourcing individual components. Typical applications include threading holes in structural steel, enclosures, brackets, pipe flanges, and mechanical assemblies. Electricians, pipefitters, HVAC technicians, and general maintenance mechanics working with threaded fastener repairs or new thread creation in ferrous and non-ferrous materials will find this set practical for bench or field use.

Key Features

• 18-piece set covers tap range 6-32 through 1/2-13 with matched drill sizes
• High speed steel construction for both taps and drills provides durability across common metals
• Plug chamfer design accommodates through-hole and most blind-hole tapping applications
• Drill sizes included span fractional, letter, and wire gauge formats: No. 36, No. 29, No. 25, No. 21, No. 7, F, 5/16 inches, U, and 27/64 inches
• Metal case keeps components organized and protects cutting edges during storage and transport

Compatibility

Designed for use with standard hand tap wrenches accepting unified inch thread taps from 6-32 through 1/2-13, and compatible with standard drill chucks accepting the included wire gauge, letter, and fractional drill sizes.

Installation Notes

Standard hand tapping operations should be performed by a qualified machinist or tradesperson using an appropriate tap wrench and cutting fluid suitable for the workpiece material. Secure the workpiece firmly before drilling to prevent movement. Follow established speeds and feeds for the drill press or hand drill in use, and back the tap off periodically to break chips and prevent tap breakage. Inspect cutting edges before each use and replace any dull or damaged tools.