RUKO HGB-DIN352-HSS-60°-č. 10 ručný závitník G 1/8

Cutting internal G 1/8 Whitworth pipe threads by hand requires a tap that stays sharp and follows the DIN 352 standard. This RUKO hand tap is made from HSS and has a 55° flank angle, so it produces clean threads in unalloyed and low-alloyed steels, cast iron, and non-ferrous metals.

Who is it for

Metalworkers, maintenance technicians, and fitters who need to create or repair G 1/8 pipe threads manually. It suits workshops where a machine tap is not available or where thread repair must be done in place.

Main features

• HSS (High-Speed Steel) body for wear resistance and long tool life.
• DIN 352 geometry with 55° flank angle for Whitworth pipe threads.
• Right-hand cutting direction for standard thread production.
• Three flutes ensure good chip evacuation and reduce clogging.
• Bright uncoated finish for general-purpose use.

Specifications

• Thread standard: DIN 352
• Thread type: G (Whitworth pipe thread)
• Thread size: G 1/8
• Threads per inch: 28
• Flank angle: 55°
• Cutting direction: Right-hand
• Number of flutes: 3
• Overall length: 45 mm
• Thread length: 18 mm
• Shank diameter: 4.5 mm
• Square drive: 3.4 mm
• Core hole diameter: 8.8 mm
• Material: HSS
• Surface finish: Bright (uncoated)
• Application: Manual thread cutting
• Recommended materials: Unalloyed and low-alloyed steels, cast iron, non-ferrous metals

Tips

Drill the core hole to 8.8 mm before tapping. Use a suitable cutting oil to reduce friction and improve thread finish. For through holes, a single tap is sufficient; for blind holes, consider a set of taper, second, and plug taps.