Assertion: cobalt drill bit | /r/HasProperty | better choice
Facets:
value: for materials
type: PURPOSE
value: for heavier-duty metals
type: PURPOSE
Source sentences:
text: On the other hand, if you need maximum possible performance for drilling into hard materials like iron and steel than opting for either titanium – or even cobalt – drill bits is the better choice.
text: Both dissipate heat well and can be used with a variety of metals, although cobalt drill bits tend to be the better option for heavier-duty metals and materials.