Sandvik Coromant Ibérica, S.A. - Broaches

Sandvik Coromant CoroDrill 881

Tools for drilling: drilling holes for small diameters in unstable conditions secure

Picture of Tools for drilling
In unfavourable cutting conditions (such as when there is misalignment of the turret), boring holes below the 24 mm in diameter can be difficult due to the lack of security of the process, a factor that often leads to a finish on the inside of the hole of poor quality or hole out of tolerance. However, cutting tools and tool holder Sandvik Coromant systems specialist offers a solution to this problem with the introduction of CoroDrill 881.

With a heavy duty design of plate to improve reliability in unstable conditions (for example, when older or less rigid machine tools are used) and a corps of drill blasting to improve the resistance to fatigue, users can be sure that will work with greater safety and greater precision in the drilling of holes.

This innovative easy to use tool solves the problems of drilling and is particularly recommended for applications with low to medium speed, as well as for non-rotating applications based on lathes. With two edges of each plate cutting, general use of high performance (GM1) geometry is used to accommodate any group of materials and thus be able to satisfy the needs of a wide range of industrial sectors.

Some possible parts: flanges and bearings of rotation for the electric power generation sector; crankshafts, connecting rods and parts of transmission for automakers; flanges, reducers and collectors for the oil industry and gas; and protective enclosures and parts of security for manufacturers of pumps and valves.

Among the many possibilities in non-rotating applications, CoroDrill 881 can be used to generate conical holes or to make holes of larger size that the diameter of the drill bit by applying a boring adicional.ia pass by 25% (drilled 250 holes against 200) thanks to greater security of the process.

Among the many possibilities in non-rotating applications, CoroDrill 881 can be used to generate conical holes or to make holes of larger size that the diameter of the drill bit by applying a further plunge past. the many possibilities in non-rotating applications, CoroDrill 881 can be used to generate conical holes or to make holes of larger size that the diameter of the drill bit by applying a further plunge past. Chamfers and relief, can also be achieved while you can prepare a hole for threading in a single pass with the chamfer. It is also important to mention that courts finish with the pass of the return (boring to traction) can be.



CoroDrill 881 is available in diameters from 14 mm up to 23,5 mm for use with coupling ISO 9766 collets or Coromant Capto (C4, C5, C6), although also available (tailor-made) Tailor Made options to fit each customer's individual requirements. The qualities preferred for the central plate are GC1044 or GC1144, while GC2044, GC4044, or GC4024; qualities are recommended for the peripheral insert in any case, the final choice depends on material and application. The final selection depends on the material and the application.