Page 351 - Yamawa_European_Catalogue_YEU21

h stock standard, ) check stock EU, f check stock JP, m stock exhaustion

NPSF Intro

GP General Purpose Series
Straight Fluted Taps for American Dryseal Parallel Pipe SP
Threads
FEATURES
General purpose for blind and through hole application.
4P
HSS-E OX For steel application at low cutting speed. SL
THCHT

Recommended Tapping Speeds Depending On Materials
PO
ISO Vc (m/min)
P1 5÷10 I
P2 5÷10 H
P3 ≤5 I ST
P4 ≤5 I
ANSI
H 1st choice I suitable
ROLL

ANSI-NPSF
TYPE: US_057 TYPE: US_058
CARBIDE
K K
DCON DCON

THL LK K THL LK K LONG
LF LF

HAND
TAPS
Basic
NPSF TCTR Ø Hole Ø Code THCHT major Ø LF THL LS DCON K LK NOF Type Stock
(mm)
(chamfer)
(tolerance)
(mm)
(mm) ( inch ) ( inch ) ( inch ) ( inch ) ( inch ) ( inch )
ANSI
ANSI G 8.7 8.72 Y83326 4P 10.117 2.125 0.75 - 0.44 0.328 0.375 4 057 f EG (STI)
1/8-27
ANSI G 8.7 8.72 Y83327 4P 10.117 2.125 0.75 - 0.31 0.234 0.375 4 058 f
1/4-18 ANSI G 11.3 11.33 Y83328 4P 13.426 2.437 1.062 - 0.56 0.421 0.437 4 057 f
3/8-18 ANSI G 14.75 14.77 Y83329 4P 16.866 2.562 1.062 - 0.7 0.531 0.5 4 057 f SPECIAL
THREADS,
1/2-14 ANSI G 18.2 18.25 Y83330 4P 20.980 3.125 1.375 - 0.69 0.515 0.625 4 058 f GAUGES
3/4-14 ANSI G 23.5 23.5 Y83331 4P 26.325 3.25 1.375 - 0.91 0.679 0.687 5 058 f
1 -11 1/2 ANSI G 29.5 29.6 Y83332 4P 32.934 3.75 1.75 - 1.13 0.843 0.812 5 058 f
THREAD
MILLS

DIES

CENTER
DRILLS

Technical
info

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