Bosch 2608577149 Hss Hex-Shank Twist Drill Bit 6.8mm 6.8 X 69 X 109mm 

Features:
Highly Robust with Impact Drivers
Impact Control HSS Twist Drill Bit offers highly robust drilling in metal, especially with impact drivers
The super-strong body is extremely robust
Precision-ground from solid metal with an oxide-coated flute for slicing through materials with reduced wear
Manufactured to DIN 338, drill bit Type N (flute angle) with a 135-degree tip, diameter tolerance h8

Product Specification:
Brand    Bosch
Model No : 2608577149
Diameter (D) mm:    6.80
Working length (L1) mm:    69
Total length (L2) mm:    109
Shank diameter (d) mm:    6.35