Hertel C.E96.S18E Tap Drill Set 18 Piece Hss

Product Description

The HERTEL C.E96.S18E is an 18-piece tap drill set engineered for standard hand tapping operations across a range of inch-series thread sizes. The set covers tap thread sizes from 6-40 up to 1/2-20 and includes matching drill sizes spanning wire, letter, and fractional categories. All taps and drills are manufactured from high speed steel for durability and heat resistance under repeated use. The taps feature a plug chamfer, which is suited for through-hole and blind-hole applications where a starting chamfer is needed. The set ships in a metal case that keeps each piece indexed and protected on the job or in the shop.

This set is designed for machinists, maintenance technicians, pipefitters, and general metal fabricators working with inch-standard fastener threads. It covers common unified national thread profiles in the light-fastener to mid-fastener size range, making it useful for repair work, production tapping, and fixture building on ferrous and non-ferrous materials. The metal case makes it practical for both bench and field use.

Key Features

• 18-piece set covering tap sizes from 6-40 to 1/2-20
• High speed steel construction for both taps and drills
• Plug chamfer taps suited for through-hole and blind-hole tapping
• Drill sizes span wire, letter, and fractional inch formats
• Organized metal case for indexed storage and transport

Compatibility

Designed for use with standard hand tap handles and drill chucks accepting the shank sizes included in this set. Drill and tap sizes follow inch-series unified national thread standards.

Installation Notes

Tapping operations should be performed with a properly sized tap handle or tap wrench to avoid overloading the tap and causing breakage. Secure the workpiece firmly before drilling and tapping, and use cutting fluid appropriate to the workpiece material to extend tool life and improve thread finish. Always wear eye protection when drilling and tapping. Broken tap extraction can be difficult, so advance the tap incrementally and back off regularly to clear chips.