CoroDrill® 870
Le foret à embout amovible CoroDrill® 870 permet de gagner du temps, d'augmenter la productivité et de réduire le coût au trou. CoroDrill 870 est conçu pour optimiser les applications avec une plage de diamètres, de lamages et de longueurs dans la zone de tolérances H9-H10.
Optimized for long predictable tool life and high productivity
The CoroDrill® 870 drill body is designed for high penetration rates and excellent hole quality. Chip flutes have optimized shape, size and helix angle for safe chip evacuation and tool stability. Grades have predictable wear patterns for long and reliable tool life at high productivity rates. Geometries showcase high process security, good chip control, high penetration rates and premium hole quality.
Tailored for your needs
CoroDrill® 870 comes in an extensive standard offering. However, when standard isn’t enough both drill body and tips can be further optimized using Tailor Made or engineered solutions. Among others, the Tailor Made options available include:
Easy handling and productive tip changes
The high precision interface between drill body and tip provides accuracy, security and stability in drilling applications. Designed for productivity, the interface allows for changing of tips while remaining in the machine, reducing downtime.
Application area
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| Conventional drilling | Inclined exits | Inclined surfaces | Chamfered holes |
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| Cross holes | Stack drilling | Convex surfaces | Step holes |
- Diameter range: 10–33 mm (0.394–1.299 inch)
- Depth capacity: 3×D–12×D
- Hole tolerance: H9–H10
- Capable of being used in a variety of drilling applications
Product variants
-PM 4334
First choice in ISO P, N and titanium.
PM 4334 is considered to be an all-round tip. Although primarily intended for low alloyed and carbon steels, it also shows good functionality and tool life in austenitic stainless steels as well as cast irons.
The grade used in PM 4334 provides an excellent combination of wear resistance and toughness.
-MM 2334
First choice in ISO M and Inconel.
MM 2334 shares a similar geometry as PM 4234, but has a reinforced chisel edge improving tool life especially for duplex stainless steels.
The grade used in MM 2334 is optimized for edge line security and resistance to adhesive forces in ISO M.
-KM 3334
First choice in ISO K.
The geometry for KM 3334 utilizes a corner chamfer, allowing for reduced exit breakouts in the workpiece material.
The grade used in KM 3334 is highly wear resistant, optimized for ISO K.
-GP 4334
Functional in all ISO materials.
The GP 4334 is intended for piloting applications. The geometry has a larger point angle and different tolerance class compared to the other PM/MM/KM geometries.
Highlights
Voir CoroDrill 870 en action
Cette vidéo montre CoroDrill 870 en action dans un moyeu. On y voit le foret à l'œuvre dans une opération rotative et une opération statique ainsi qu'une stratégie de trou pilote avec chanfrein pour réduire le temps de cycle.
Productivité accrue avec CoroDrill 870
Quand la société suédoise Gunnebo Industries a décidé d'utiliser CoroDrill 870, la sécurité des opérateurs s'est améliorée et la productivité a gagné 45%.
Tailor Made
Machining a unique component and need a special drill to suit your application type? Tailor your tools to get the best machining results with our Tailor Made service.
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