CoroDrill® DS20
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CoroDrill® DS20 What innovation looks like Innovative drill body and insert designs have resulted in a drilling concept with never-before-seen stiffness, evacuation performance and light cutting action. CoroDrill® DS20 reaches hole depths from 4 up to 7 × DC and offers reliability, predictability and outstanding penetration rates. Improve your drilling operations even more and reduce your tool inventory by using the stable and high precision Modular Drilling Interface, MDI

Strong drill body The design of the CoroDrill® DS20 has resulted in a strong and fatigue-resistant drill body where each drill body size is individually optimized to ensure a secure and consistent performance over the entire assortment. The drill body stiffness, in combination with light-cutting geometries, generates less vibration and significantly increased tool life. With high process security and good run-out accuracy, CoroDrill® DS20 will reduce your costs and increase your component quality. • Opens up for new machining processes with increased productivity • Predictable and...

Twisted coolant holes CoroDrill® DS20 is designed with variable twisted coolant holes which allow for maintained drill body rigidity. The coolant outlets are strategically placed to ensure best possible coolant flow and direction. With more coolant on the clearance side, a longer insert tool life and better chip evacuation can be achieved. Optimized chip flutes The chip flutes are individually shaped for optimized chip evacuation of the peripheral and central inserts different chip forms. All chips created fits inside the flutes. The different shaped flutes help to control the rotational...

An insert for every application With three support contact surfaces in each insert seat, there are less insert movements leading to longer tool life and better hole surface. The inserts are strong and have a bulk strength that provides extra toughness resulting in unmatched insert tool life. Closer hole tolerances can be achieved thanks to the ground dog-bone shaped peripheral insert. This double-sided positive insert, with a negative insert position, directs the cutting forces into the drill body resulting in higher stability and consistent performance. Grades are available for all...

Next generation step technology Entering the workpiece with an asymmetrical drill by default generates an unbalance. The new generation of inserts with double steps allow for softer entries and cutting forces are considerably reduced at entry. In combination with the stiff drill body, the centring capabilities are dramatically improved enabling deeper holes to be drilled, higher productivity as well as closer hole tolerances. Customer benefits • Secure and reliable cutting process with high productivity ensuring low cost per hole • Versatile drill with good chip formation in a broad cutting...

MDI (Modular Drilling Interface) The patented MDI coupling is a stable and high precision modular drilling interface that provides excellent centring capabilities. One size can be used for several drill diameters leading to less tool inventory and lower costs. In addition, MDI offers quick and easy set-up. Four locating pins allow for high torque transmission and provide an exact cutting edge position. The position of the locating pins makes it possible to rotate the drill 180º which can be beneficial in poor machine conditions, for example in misaligned or unstable lathes. With two...

Tool life Customer case Component: Material: Operation: Machine: Gear ring, 91 holes Through hole, Ø39 mm (1.54 inch), depth: 229 mm (9 inch) Vertical machining centre, ISO 50 taper, 20 bar (290 PSI) v f, mm/min (in/min) fn , mm (inch) increas produc ed tivit y Sandvik Coromant Unstable tool life, approximately 1/4 ring per insert edge 1/2 ring per tool insert edge Result: With CoroDrill® DS20, the customer got a secure and predictable drilling process with good surface quality, better tool life and less insert set-up time.

Application • For hole depths 4–7×DC • Geometries designed for versatility or optimized applications Inclined exits Inclined surfaces Cross holes • Capable of both non-rotating and rotating set-ups Conventional drilling Convex/concave surfaces • Can be used for drilling with radial offset, deburring and back boring For more information and assortment, contact your local Sandvik Coromant representative or visit www.sandvik.coromant.com/corodrillds20 Head office: AB Sandvik Coromant SE-811 81 Sandviken, Sweden E-mail: info.coromant@sandvik.com www.sandvik.coromant.com C-2940-167 en-GB © AB...