Page 486 - Yamawa_European_Catalogue_YEU23

Long Taps

MHRZ (LS)
Intro

Z-PRO Series
SP
Long Shank Roll Taps for Carbon Steel of Medium Hardness,
Coated
FEATURES
Long shank Z-PRO Series forming tap with special design
2P 4P for low tapping torque.
SL HSS-Co COATING
THCHT THCHT HSSCo and suitable coating for long life on Medium Hard
steel (<35HRC) application.
4P chamfer for through holes application
Recommended Tapping Speeds Depending On Materials
PO
ISO Vc (m/min) ISO Vc (m/min)
P2 10÷30 + N1 10÷30 ,
P3 10÷30 + N2 10÷30 ,
ST P4 10÷30 +
+ 1st choice , suitable

ROLL

JIS-MHRZ (LS)
Secures appropriate tool projection length to prevent interference with workpieces
CARBIDE

LONG
JIS

HAND
TAPS

Preventing interference. Tapping to a deep position.
EG (STI)
Process Data

M12×1.25
SPECIAL Workpiece material 42CrMo4 - 1.7225(35HRC) MHRZ Competitor
THREADS, Cutting speed 20 m/min
GAUGES Bored hole ø11.3 mm
Thread length 18 mm (through hole)
Machine Machining center (synchro)
THREAD Lubricant Water soluble oil
MILLS No. of threads 800 threads (still running)

DIES MHRZ finishing
Competitor tap High wear Competitor
MHRZ products
Light wear
MHRZ Ligh t w ear
CENTER
DRILLS (threads)

Technical
info

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