Tap FANAR GWINTOWNIK BSW 3/16-24 DIN 371B HSS-E 800

FANAR GWINTOWNIK BSW 3/16-24 DIN 371B HSS-E 800 is a machine tap designed to cut BSW (British Standard Whitworth) threads with a 3/16-24 pitch. Manufactured from high-speed steel with cobalt (HSS-E), the tap provides enhanced wear resistance and thermal stability for general-purpose tapping tasks. It conforms to DIN 371B dimensional standards and is intended for use on threading machines or in handholders for production, repair, and maintenance operations.

Advantages

The HSS-E material composition delivers improved hardness and longer tool life compared with standard HSS, particularly when working with alloyed steels. Conformance to DIN 371B ensures consistent geometry and compatibility with standard holders and fixtures. The tap’s flute design and cutting geometry are optimized for reliable chip evacuation and reduced jamming during through and blind hole tapping in suitable materials.

Suitable for

• Cutting BSW 3/16-24 threads in steel and alloy materials
• Machine tapping on threading machines and CNC equipment
• Handheld tapping with appropriate handholders for maintenance and repair
• Production and small-batch workshop threading tasks

Key specifications

• Thread form: BSW (British Standard Whitworth)
• Size and pitch: 3/16-24
• Standard: DIN 371B (general-purpose machine tap dimensions)
• Material: High-speed steel with cobalt (HSS-E)
• Application type: Machine tap suitable for through and blind holes depending on machining setup

How to use

Secure the tap in a compatible machine spindle or handholder designed for DIN 371B taps. Use appropriate cutting fluid to reduce friction and improve chip evacuation when tapping steels and alloys. Align the tap carefully with the pre-drilled hole center, start at low speed to establish the thread, and apply steady feed corresponding to the thread pitch. Reverse the tap periodically to break and remove chips when threading blind holes. Inspect threads after tapping and remove any burrs before assembly.

Usage recommendations

For best results, select cutting speeds and feed rates matched to the workpiece material and use suitable tapping lubricant. Avoid excessive axial force and ensure proper alignment to reduce the risk of tap breakage. Replace the tap if signs of wear or chipping appear to maintain thread quality.