Page 60 - Aluminum_Machining_catalog_2023

USER GUIDE
TAPS Tap Designation Code Key

TPG UNC 1/4-20 M HE Ti

B - Bore for Coating
Tap Style
Coolant Types*
TPH - hand tap D- TPI (on request) Ni - nitriding
TPF - forming tap D- pitch Ti - TiN
TPG - gun point TC - TiCN
TPS - spiral flute TA - TiAlN
TPST - straight flute St - black oxide
* On request

Thread Standard Tap Color Codes (1) Tap Materials
M - ISO metric M - multi-material application HS - H.S.S. (M2)
coars thread
DIN-13
MF - ISO metric W - steel with good machinability HE - H.S.S- E 5% co.
fine thread rm<750 n/mm 2 HSS (M35)
DIN-13
UNF - unfied fine S - stainless steel PM - compacted powder
thread
UNC - unfied coarse H - hardened steel and high HM - solid carbide
thread temp./super alloys rm>750 n/mm 2
G - grey cast iron

N - low alloy steel rm<600 n/mm 2

A - aluminum and aluminum alloys

F - any material with at least
8~10% elongation
(1) The tools have a matching colored
ring around the shank

Chamfer Lead According to DIN2197 (Specified for Each Tool Family)

A form A (chamfer lead 5-6 threads)
B form B (with gun-nose and chamfer lead 4-5 threads)

C form C (chamfer lead 2-3 threads)
D form D (chamfer lead 4-5 threads)

E form E (chamfer lead 1.5-2 threads)

58 ISCAR