ThreadMilling – Manifold Blanket – AH725


Tungaloy recommended ThreadMilling, instead of HSS taps. Improvement Result: Improved cycle time by 25% and tool cost by 76%. Tool change time also decreased, reducing machine downtime. This saved additional investments for new machines, which was initially planned. In addition, ThreadMilling tool generated far lower cutting forces, compared with a HSS tap, eliminating the concern for workpiece movement during machining.

Industry Automotive
Component Manifold Blanket
Material ISO code K - Cast ironK - Cast iron
Work material FC250
Machine(spindle type) Vertical Machining Center
Tool family Milling
Tool category Internal threading
Product name ThreadMilling
TSR No. 1642M
Manifold Blanket


Tungaloy Competitor
Body ETTL25M017 W25.0F026R02-PT HSS tap
Insert TL25SEIR11.5NPT
Grade AH725

Cutting conditions

Tungaloy Competitor
Cutting speed V/c (mm/min) 154 10
Feed per tooth f/z (mm/t) 0.095 0.095
Feed f (mm/rev) 0.19 0.19
Coolant External air blast External air blast


4x Tool lifeincrease

ReducedBy 25%