T-max twin-lock, T-max twin-lock® – internal and external threading – Sandvik Coromant Threading User Manual
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RD
V – RD – BU
2
P M K
N S
GC1125
3. Products - thread turning
T-Max Twin-Lock® – internal and external
threading
Designed for threading in high volume areas of the oil
and gas industry. Examples of applications are tubing,
casing and coupling production.
The system also covers connection threads,
where indexing accuracy, insert edge reliability
and repeatability are essential.
• Productive threading with multi-tooth inserts
• Minimum hole diameter 60 mm (.2.36 inch)
• ISO-M, -S, -P, -K, -N materials
• Optimized for steel
API 60° (RD)
Pitch: 10 – 8 t.p.i.
API Buttress (BU)
Pitch: 5 t.p.i.
Type of insert
A (all-round)
No. of points
3 or 4
Geometry
All-round
Grade
ISO
Assortment - T-Max Twin-Lock®
Tool holders
• SL-cutting head 40 mm
• Shank tool 32x32 mm
• Cartridge
Inserts
• API Round 10 – 8 t.p.i.
• API Buttress 3/4 – 1 i.p.f.
For cutting data recommendations see chapter 5, Technical reference (page 86).