Heule Drills Maintain Precise Results at High Feed Rates

’ DCC tooling is designed to drill and chamfer both sides of the workpiece in a single operation without turning the workpiece or changing tooling.

In addition to significantly reducing cycle times, solid carbide construction provides optimum concentricity and drilling performance. Well suited for holes from 4.0-10.0 mm (0.15-0.39"), this specialized technology consists of a solid carbide drill body with a SNAP chamfering system added, enabling the tool to create a bore and then chamfer both bore edges. Since the drill bit and tool body are manufactured in one piece, DCC can produce precise results at high cutting speeds/feed rates. Bore depths of up to 2.5 × D can be attained, with chamfers up to 0.8 mm. This specialized arrangement enables quick setup and reduced downtime due to easy handling. The tools features easily replaceable carbide chamfering blades with material specific coatings. Heule DCC with custom drill geometry is available for all materials including cast iron, stainless, titanium, aluminum and steel applications. 

The drilling geometry and coating are adapted according to the workpiece material. If larger chamfers are required on the front edge of the bore, a stepped drill configuration can be integrated in to the tool. DCC is well suited for machining even and slightly uneven bore edges. The defined cutting process with ground carbide blade provides complete edge breakage — resulting in a burr-free front and back of the workpiece.

With its specialized one-piece solid carbide construction, DCC technology enables the bore to be drilled and chamfered without turning the workpiece or changing tooling, leading to a significant reduction in cycle time. This can eliminate manual machining and simplify tool management.