TungDrillTwisted – Automotive Parts – AH725


AH725 grade with high wear resistance shows 1.5 times longer tool life than competitor’s indexable drill. Tungdrill Twisted solves the problem of chips remaining in machined hole, due to increased coolant supply by twisted oil holes. DS chipbreaker with low cutting force reduces the spindle load by 30% when compared to the competitor’s.

Industry Automotive
Component Automotive part
Material ISO code M - Stainless steelM - Stainless steel
Work material X6CrNTi18-10
Machine(spindle type) CNC Lathe
Tool family Holemaking
Tool category Drilling
Product name TungDrillTwisted
TSR No. 092D
Automotive part


Tungaloy Competitor
Body TDX200F25-3 Indexable drill
Insert XPMT06X308R-DS Square type insert
Grade AH725 PVD

Cutting conditions

Tungaloy Competitor
Tool diameter DC (mm) 20 20
Hole depth H (mm) 55 55
Cutting speed V/c (mm/min) 150 150
Feed f (mm/rev) 0.07 0.07
Coolant Water soluble Water soluble


Tool life1.5 times