5pcs Hammer Drill Bit Set SDS-PLUS with PGM Certification

Splus standard carbide tipped.

SDS-plus shank under Bosch audited to fit branded rotary hammers.

I type of flute maximizes the dust-rejection rate in faster drilling.

Special hardened steel blank guaratees that best durability to unify the carbide drilling life.

Fast spiral flute angle design to increase drilling efficiency in building material.

Design for all concrete,stone and bricks drilling.

Vacuum soldering holds the best welding strength of those heavy duty drilling.

PGM certificated quality support to the high drilling work demands.