andvik Coromant CoroDrill® 870 Exchangeable Tip Drill
The CoroDrill® 870 represents the cutting edge of exchangeable-tip drilling technology, specifically engineered to optimize intermediate-to-large batch holemaking operations. By combining solid carbide drill performance with the economy of indexable tools, the CoroDrill® 870 delivers exceptional penetration rates, close hole tolerances, and low overall cost-per-hole.
Designed with a high-precision, highly rigid tip-clamping interface, the tool guarantees minimal runout and seamless tip changes directly in the machine. Its optimized flute shape and spiral angle ensure efficient, hassle-free chip evacuation, while internal coolant channels maximize tool life and process security even at deep drilling depths.
Key Features & Benefits
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Secure Tip-Clamping Interface: Rigid, precise locking system allows quick and easy tip changes without removing the tool body from the machine or holder.
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Optimized Flute Design: Variable flute design and polished chip channels facilitate rapid chip removal and prevent chip re-cutting.
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High Process Security: Tight IT9–IT10 tolerance capabilities ensure reliable, predictable hole quality and superior surface finishes.
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Customizable Tip Geometries: Available in application-specific geometries tailored for Steel (PM), Stainless Steel (MM), Cast Iron (KM), and Aluminum (NM).
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Cost Efficiency: Reduces downtime and tool inventory costs by replacing only the worn cutting tip rather than the entire tool body.
Technical Specifications
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Drill Diameter Range: 10.00 mm – 33.00 mm (0.394 in – 1.299 in)
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Drilling Depths: 3xD, 5xD, 8xD, and up to 10xD body options
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Hole Tolerance: IT9–IT10 achievable tolerance range
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Coolant Delivery: Internal coolant supply directly through the drill body
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Shank Types: Cylindrical shank with flat (ISO 9766 compliant) or Whistle Notch
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Applicable Workpiece Materials: Steel (ISO P), Stainless Steel (ISO M), Cast Iron (ISO K), Non-Ferrous Metals (ISO N), and High-Temp Alloys (ISO S)
