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Subland drills are two separate drills within the same drill having separate flutes for chip evacuation. These drills are problem solvers in drill chamfer or drill counter-bore applications, where chip clogging is a severe problem. For eg: In holes with less working depth( <1D), where there is insufficient space for chips of the pilot drill and chamfer(or counter-bore) diameter.
In such cases, the subland drill works more efficiently than a step drill(refer Step Drill page) as it eliminates chip clogging and gives more re-grinds. In fact, when step length is < 3 mm, it is impossible to regrind a step drill efficiently.
In applications where there are cross holes, inclined entry or exit holes “Double Margins” are provided on the subland drill for greater stability. The additional margins will give maximum support and guidance to provide more accurate size.
In Aayudh subland drills, all the drill points are optimized for the material.
To enable us to offer the right geometry, coating etc. please fill out the form below, enter Your email ID and click ‘SEND‘, we will revert promptly with a preliminary offer by mail or by our Sales Engineer, who after studying your application would submit our final offer for your actions. You can also download and take a printout add your values and Email to marketing@aayudh.co.in
Application Input Attachements : If you have more than one file please zip it and then attach. Attachment file should not be more than 5mb
Solid Carbide Tools are normally PVD coated to enhance their performance in terms of Tool Life and Productivity. Aayudh Tools will decide the PVD Coating based on your application and your inputs. In case you have any specific prefernce please specify in the Comments / Special instructions field. Aayudh Tools will evalutae and revert with our recommendations.
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