Engine block

Engine block

Cast iron


The trend towards higher performance with smaller displacement and lower fuel consumption leads to higher mechanical loads on the engine block. This necessitates increasingly high-quality materials made from grey cast iron (GG) and compacted graphite iron (CGI).

Our Tiger·tec® Silver and Tiger·tec® Gold cutting tool materials and innovative tooling systems are ideal for machining such materials. You can achieve an extremely high level of dimensional accuracy, optimum surface quality and increases in productivity of up to 100% thanks to the combined use of Walter milling tools and high-performance drills. We can handle every engine block machining operation. And you gain competitive per-part costs in mass production, even where complex components are concerned.

Finish-milling for main surfaces

Our solution:
Walter M2025/M2026 multi-tooth finishing face milling cutter

  • Roughing insert with 16 cutting edges
  • Fixed finishing indexable insert with 4 cutting edges
  • Close tooth pitch for a high feed rate

Benefits for you:
High feed rates, excellent surface quality and easy tool handling as no adjustment is necessary.

Cylinder bore roughing

Our solution:
Walter rough boring bar with tangential cutting edges

  • Highly stable, compact design
  • Standard indexable inserts
  • 8 useable cutting edges
  • Cooling using emulsion or MQL/air

Benefits for you:
Low cost per part and reliable machining, with no vibration and maximum stability.

Roughing and finishing surfaces

Our solution:
Walter M2136 close pitch cutter

  • Stable wedge clamp
  • Close tooth pitch for a high feed rate
  • Low power requirement thanks to positive indexable insert geometry

Benefits for you:
Very high surface quality thanks to high-accuracy insert seats. Low cost per part thanks to indexable insert with 8 cutting edges.

Drilling core holes

Our solution:
Walter Titex X·treme CI step drill

  • XPL coating
  • Internal coolant
  • Facet

Benefits for you:
High process reliability and excellent drilling quality, as well as a long tool life thanks to the high-performance coating and special tool geometry.