Laydown Threading
Grades and Grade Descriptions
Coatings provide high-speed
capability and are engineered
for fi nishing to heavy roughing.
• Reduce cycle times — high speed capability.
• Longer tool life — new multilayer
coating provides better wear resistance.
P
Steel
M Stainless Steel
K Cast Iron
N Non-Ferrous
S High-Temp Alloys
H Hardened Materials
wear
resistance
Coating
toughness
05 10 15 20 25 30 35 40 45
Grade Description
P
M
PVD-TiAlN Nano-multilayer coated carbide. General-purpose machining for steels,
stainless steels, cast irons, non-ferrous materials, and diffi cult-to-machine materials.
Recommended at low to medium cutting speeds when higher toughness is required.
K
N
S
HC-P25
• All Laydown Threading inserts are precision ground to provide
accurate thread forms and indexing. • Non-cresting partial profi le inserts offer the fl exibility to cut a variety
of thread pitches with one insert.
• Both cresting and non-cresting partial profi le inserts are specifi cally
designed for either external or internal threading operations. • Right-hand Laydown Threading toolholders use right-hand inserts.
Left-hand Laydown Threading toolholders use left-hand inserts.
• Cresting inserts provide a fully controlled thread form, including
diameter for a given pitch. The need for deburring is eliminated
and the inserts are optimised for the best tool life at that pitch. • Right-hand Laydown Threading boring bars use right-hand inserts.
Left-hand Laydown Threading boring bars use left-hand inserts.
widia.com
F43
Laydown Threading Thread Form Guide