TungCut – Spool Valve – AH725


Competitor’s poor chip control and re-cutting of chips frequently causes fracture on the cutting edges. On the other hand, the chip control of DTE type is highly stable even when machining with 2.5 times higher feed than the competitor, preventing chip re-cutting which is the cause of fracture. The sharp cutting edge of DTE type reduces the cutting forces, preventing work deformation and creating fine surface finish.

Industry Automotive
Component Spool Valve
Material ISO code P - SteelP - Steel
Work material 12SMn35
Machine(spindle type) CNC Lathe
Tool family Turning
Tool category External grooving
Product name TungCut
TSR No. 119T
Spool Valve


Tungaloy Competitor
Holder CTER2020-3T09 20X20 shank
Insert DTE3-040 2 corner insert
Grade AH725 PVD

Tool life

Tungaloy Competitor
Tool life (pcs/edge) 70 30

Cutting conditions

Tungaloy Competitor
Cutting speed V/c (mm/min) 80 80
Feed f (mm/rev) 0.1 0.04
Coolant Water soluble Water soluble


Tool life2.3 times