JIS HVSP

Z-PRO

SpiralflutedTapsforForgedPartsintheHeavyMetalworkingIndustry.

Specification

Oxide

Recommended Tapping Speeds depending on Materials

Low carbon steels Medium carbon steels High carbon steels Alloy steels Stainless steels

低炭素鋼5中炭素鋼5高炭素鋼5合金鋼5ステンレス鋼5
(m/min)( m/ min)( m/ min)(m/min)(m/min)

Product Features ●YAMAWAhasdesignedafluteshapeandcuttingedgeangletoimprovethechipejectionproperties. ●Aheelgrindontherearthreadshasimprovedtheperformanceofthetapandeliminatedthematerialschip residueinthethreadsthatiscausedonreversalbythetap'sendthreads.

●Withnochipsleftinthethreads,thetappingoperationislesslikelytochiptheflutesorthreadsofthetapduringthetap'sreversal.

●Thereareseveralfullthreadsafterthecuttingchamferandaspecialheelgrindtothebalanceofthethreadsto

reducetheirfullthreadheight,therebyreducinganychanceofchippingtheflutes.

Tapping Data

・Improvement of chipped flutes ◎Full Thread Part ◎Chamfer Part

Tapping conditions [M36 × 4] ConventionalProduct ConventionalProduct Work Piece Material SS400 Chipping Chipping

Tapping Speed 3m/min Tapping Length 50mm

HVSP HVSP

Machinery TypeRadial drilling machine250Holes250Holes
Tapping FluidNon-water soluble cutting oilOngoingProcessingOngoingProcessing

NoChipping NoChipping ・Compatible with a wide range of workpiece machining. Tapping conditions Excellent Surface Finish

MaterialRecommended Tapping Speed (m/mim)
Stainless SteelSUS303/SUS304/SUS3163〜8
Alloy SteelSCM/SCr3〜8
High Carbon SteelS45C〜3〜8
Medium Carbon SteelS25C〜S45C3〜8
Low Carbon Steel〜S20C/SS4003〜8