Hand Tap FANAR DIN-352 LH HSS M14 (left-hand, metric thread)

Hand Tap FANAR DIN-352 LH HSS M14 (left-hand, metric thread) is a straight-fluted, manual tap designed to form left-hand M14 metric threads in pre-drilled holes. Manufactured from high-speed steel (HSS), it follows the DIN-352 profile and is intended for use with standard tap wrenches in maintenance, repair and general metalworking tasks. The tool is suitable for cutting threads in a variety of steels and common metals where a left-hand thread is required.

Advantages

The HSS material offers elevated wear resistance and thermal stability compared with carbon steel taps, extending tool life under normal manual tapping conditions. Conformance to DIN-352 ensures consistent thread geometry and interchangeability with standard mating parts. The left-hand (LH) thread form enables use in applications that require reverse rotation or anti-rotation fastening solutions. The straight-flute design simplifies chip evacuation during manual tapping and reduces the risk of tap breakage when used with appropriate lubrication and correct tapping technique.

Suitable for

• Creating left-hand M14 metric internal threads in pre-drilled holes
• Maintenance and repair of machinery and equipment that use left-hand fasteners
• General metal fabrication where left-hand threads are specified
• Manual tapping operations with a standard tap wrench

Key specifications

• Thread size: M14 (metric)
• Thread hand: left-hand
• Standard/profile: DIN-352
• Material: high-speed steel (HSS)
• Flute type: straight flutes for manual tapping
• Intended use: manual cutting of internal threads

How to use

Select a correctly sized pre-drilled hole matching recommended drill size for M14 left-hand threads, secure the workpiece and align the tap perpendicular to the hole. Mount the tap in a compatible tap wrench, apply appropriate cutting lubricant, then start the tap with a careful clockwise or counterclockwise motion as required for left-hand threading (turn the tap opposite to right-hand taps). Advance the tap incrementally, reversing slightly every half turn to break chips and prevent jamming. After reaching full thread depth, back the tap out while maintaining lubrication and keeping the tool aligned to avoid thread distortion.

Usage recommendations

Use cutting oil or an appropriate lubricant for the workpiece material, keep steady alignment and moderate feed to reduce tool stress, and avoid excessive torque when hand tapping. Inspect threads with gauges or mating fasteners to confirm size and fit; replace the tap when wear or chipping becomes evident to maintain thread quality.