ReamMeister – Gear Counter Drive – AH725


ReamMeister eliminated vibration while providing process security and good surface quality at increased cutting parameters thanks to its tool stability ensured by secure tool support with the reamer margins. Furthermore, ReamMeister significantly reduced the machining time from 46 to 5(!!) seconds per part. Tool life was increased by over 20 times combined with premium surface quality. Significant improvements of machining efficiency and tool failures outbalanced initial increase in tool investments, thus allowing the customer to boost productivity.

Industry Automotive
Component Gear Counter Drive
Material ISO code P - SteelP - Steel
Work material 18CrNiMo7-6
Machine(spindle type) CNC Lathe
Tool family Holemaking
Tool category Reaming
Product name ReamMeister
TSR No. 1699D
Gear Counter Drive


Tungaloy Competitor
Body TRM-T8-R20-5 Anti-vibration boring bar
Head Special (ø20.050, z=8) Positive ISO insert,2 corners
Grade AH725 PVD, P10

Cutting conditions

Tungaloy Competitor
Tool diameter DC (mm) 20.05 20.05
Hole tolerance grade ±0.05 ±0.05
Pilot hole diameter (mm) 19.8 19
Surface quality required Ra (μm) 1.6 (μm) 1.6 (μm)
Hole depth H (mm) 100 100
Cutting speed V/c (mm/min) 170 170
Feed f (mm/rev) 0.5 0.08
Coolant Internal supply Internal supply


Productivity9.7 times

Tool life20 times