Page 1695 - Master Catalog 2017, Inch

High-Performance Taps
Grades and Grade Descriptions

P Steel
Coatings are designed for
M Stainless Steel
optimized tapping performance
K Cast Iron

in specific materials.
N Non-Ferrous
S High-Temp Alloys
H Hardened Materials

wear
resistance toughness
Coating Grade Description 05 10 15 20 25 30 35 40 45

WS34MG Coated HSS-E-PM, PVD heat- and wear-resistant high-vanadium, high-cobalt
powder metal HSS-E-PM substrate. Coating consists of low-friction CrC/C
over wear-resistant TiN base layer. Use for tapping titanium and titanium alloys.
S

WS30MG Surface treated HSS-E-PM: powder metal HSS-E-PM substrate with nitride surface
treatment that provides wear resistance in non-ferrous materials including titanium.
Limited use. Use for tapping titanium and titanium alloys.
S

Grade WU32MG Coated HSS-E-PM, PVD heat- and wear-resistant high-vanadium cobalt
powder metal HSS substrate coated with wear-resistant TiCN base layer.
S

WS39MG Surface treated HSS-E-PM powder metal HSS-E substrate with oxide/nitride
surface treatment that provides wear resistance in nickel alloys.
S

P
WP31MG Coated HSS-E-PM, PVD powder metal HSS-E substrate with TiN coating.

Use for tapping steel 32–44 HRC and for forming threads in steel up to 32 HRC.

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