Sandvik Coromant Drill Provides High Hole Integrity

CoroDrill 860 solid carbide drill is optimized for drilling in nickel-based, HRSA materials.


Drill tool machining a part
Photo Credit: Sandvik Coromant

Sandvik Coromant has introduced a new solid carbide drill optimized for drilling in nickel-based, heat-resistant super alloy (HRSA) materials, with a standard drilling depth capability of up to 8 × D.

According to Sandvik Coromant, the new CoroDrill 860 offers a consistent and predictable tool life with high hole integrity, which is important for applications with high demands and processes in place to safeguard quality, such as the aerospace industry.

There are several features that contribute to the high performance for HRSA materials. First is the specialized grade — S2BM — which combines a fine-grained cemented carbide substrate, a multilayer physical vapor deposition (PVD) coating and a post-treatment, delivering maximum tool life. Additionally, it features geometry with optimized clearance angles and highly controlled edge preparation, flute shape, corner chamfer and double margin,  providing performance and process security.

The company’s extensive design development and comprehensive product tests in multiple HRSA materials have shown that the CoroDrill 860 with -SD geometry performs consistently in 3, 5 and 8 × D applications, offering excellent machining stability and process security. This makes process planning and cost calculations more reliable when predicting tool life and conducting cost-per-part analysis.


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