Bosch 2608831042 Hammer Drill Bit Sds Plus-3 14 X 400 X 460mm 

Features:
Durability in Concrete
SDS plus-3 Drill Bit offers durability while drilling concrete
4-flute dura design provides effective dust removal for increased endurance
High-alloy steel produced with optimised hardening technology to withstand wear
Indented cutting edges made from a Bosch-controlled carbide blend provide additional resistance
Product Specification:

Diameter (D) mm:    14.00
Working length (L1) mm:    400
Total length (L2) mm:    460