Drilling Different Size Holes with a MultiSpindle Head
Close spaced hole tend to be uniform in size but there are situations where a hole pattern has hole sizes that differ. If the difference in hole size among the cluster of holes is less than 30-50% than the spindle speed can be set to allow drilling the largest hole size without affecting the tool life. Our Recommended Tool Speed Chart can be used as a guide for tooling speeds for standard high-speed tooling in common materials.
AutoDrill can provide replacement drilling heads for Commander, Johnson, Ettco, Centerline Centroid and many more. Our prices make rebuilding Commander, Johnson, Ettco, Centerline Centroid and many other brand multiple spindle heads uneconomical. When you need a replacement head for Commander, Johnson, Ettco or Centerline Centroid multi-spindle drill or tapping heads call AutoDrill.
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