Threading tool FANAR Narzynka calowa 1/4" (hand tap) N1-121001-4627

FANAR Narzynka calowa 1/4" (hand tap) is a manually operated cutting tool designed to form internal 1/4-inch threads. Produced by FANAR, this hand tap is intended for use in metalworking and maintenance tasks where inch-series internal threads are required. It is suitable for repairing existing threaded holes or creating new ones in materials compatible with hand tapping, and is intended to be used with appropriate tapping handles and cutting fluid to ensure proper chip evacuation and thread quality.

Advantages

The hand tap provides precise thread cutting for 1/4-inch internal threads with simple manual control. Its design permits controlled material removal and accurate thread profile when used with correct alignment and lubrication. The tool supports maintenance and repair workflows by enabling on-site thread reconditioning without the need for powered tapping equipment.

Suitable for

• Creating 1/4-inch internal threads in metal components
• Repairing damaged or worn internal threads
• Maintenance and field repair tasks requiring inch-series threads
• Hand-tapping operations where machine tapping is impractical

Key specifications

• Thread size: 1/4 inch (internal)
• Tool type: hand tap for cutting internal threads
• Operation: manual, requires tap wrench or suitable handle
• Application materials: compatible with typical metals used in hand tapping when appropriate lubrication is applied

How to use

Secure the workpiece firmly in a vise or fixture and mark the hole position. Drill the correct pilot hole for a 1/4-inch tap using the recommended drill size for the thread standard in use. Fit the hand tap into a proper tap wrench, apply cutting fluid to the tap and the hole, and start the tap straight into the hole with steady, even pressure. Turn the tap one half to one full turn forward, then back a quarter turn to break chips and prevent jamming. Continue this cycle until the required thread depth is reached, then reverse the tap to remove it and clean chips from the hole and tool.

Usage recommendations

Use appropriate cutting fluid for the workpiece material, maintain straight alignment during tapping, and clear chips frequently to prevent tool breakage. For hardened or tough materials, consider using a specialist tap or machine tapping equipment. Inspect the formed threads with a compatible plug gauge or mating fastener to verify fit and thread quality.