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RT 150 GG Back to: Products | Drills | Special tools

The RT 150 GG ensures accuracy and productivity
Type RT 150 GG in solid tungsten carbide (K40) with coolant ducts, specially developed for precision machining of short-chipping materials such as cast iron, heat-treatable grey cast iron, spheroidal graphite and malleable cast iron, aluminium alloys with a high silicon content. On request also available with S-, A-, C- and M-coating, to optimise the performance for special machining tasks. The tools can be reground without necessitationg a recoating.

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Related topics: RT 150 | RT 150 GN
Tools Carbide grade Shaft Surface Series #
4 × D
HM
DK460UF
HA bright 768
10 × D 770
Both drills have coolant ducts

Advantages

Prerequisites, application recommendations

Powerful machines, play-free spindles, tool holders with high alignment accuracy. Maximum concentricity error of clamped tools 0.02 mm. The application of hydraulic chucks is recommended. For coolant pressure and coolant volume see figures 2 and 3.

Manufacturing specifications

Pictures / Illustration

[ Fig. 1 | Fig. 2 | Fig. 3 ]
Fig. 1: Typical alignment diagram of holes produced in GGG 40 with TiN-coated HSS drills and Ratio drills, tool diameter 10 mm.
Fig. 2: Necessary coolant pressures and volumes for the machining of GG 25, applies to drilling depths of <= 5 × D,
  1. optimum pressure
  2. good pressure
  3. minimum pressure
  4. optimum volume
  5. good volume
  6. minimum volume
Fig. 3: Necessary coolant pressures and volumes for the machining of AlSi7, applies to drilling depths of <= 5 × D,
  1. optimum pressure
  2. good pressure
  3. minimum pressure
  4. optimum volume
  5. good volume
  6. minimum volume

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