Bosch HC2051 Specifications:
•  Diameter: 5/16"
•  Useable Length: 4"
•  Overall Length: 6"

Bosch HC2051 Features:
•  Centric tip for optimal hole geometry
•  Less drill bit wander due to improved tip shape
•  Spiral flute all the way up to the drilling head for rapid dust removal
•  Patent-pending 4-flute design for fast dust removal