Page 354 - Yamawa_European_Catalogue_YEU21

Straight Fluted Taps

ZELX MOLD NPT
Intro

MS Material Specifi c Series
SP Straight Fluted Taps for American Taper Pipe Threads, for
Hard Materials (<45HRC)
FEATURES
Material specifi c for blind and through hole application.
3P
SL HSS-Co For high tensile strength steel <45HRC.
THCHT Specifi c geometry and HSSCo allow stable and long life.

Recommended Tapping Speeds Depending On Materials
PO
ISO Vc (m/min) ISO Vc (m/min)
P5 ≤5 H K2 ≤5 I
P6 ≤5 H K3 ≤5 I
ST H 1st choice I suitable
ANSI

ROLL

ANSI-ZELX MOLD NPT
TYPE: US_055 TYPE: US_056
CARBIDE K K
DCON DCON

LK K LK
LONG THL THL K
LF LF

HAND
TAPS
Basic
NPT TCTR Ø Hole Ø Code THCHT major Ø LF THL LS DCON K LK NOF Type Stock
(tolerance)
(chamfer)
(mm)
(mm)
(mm) ( inch ) ( inch ) ( inch ) ( inch ) ( inch ) ( inch )
ANSI
EG (STI) 1/8-27 ANSI G 8.35 8.39 Y89641 3P 10.117 2.125 0.75 - 0.44 0.328 0.375 4 055 f
1/4-18 ANSI G 10.8 10.85 Y89643 3P 13.426 2.437 1.062 - 0.56 0.421 0.437 4 055 f
3/8-18 ANSI G 14.25 14.27 Y89644 3P 16.866 2.562 1.062 - 0.7 0.531 0.5 4 055 f
SPECIAL 1/2-14 ANSI G 17.5 17.6 Y89645 3P 20.980 3.125 1.375 - 0.69 0.515 0.625 4 056 f
THREADS,
GAUGES 3/4-14 ANSI G 22.9 22.91 Y89646 3P 26.325 3.25 1.375 - 0.91 0.679 0.687 5 056 f

THREAD
MILLS

DIES

CENTER
DRILLS

Technical
info

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