Wear is minimal
Wear of outside diameter is less than that of normal bit, and the diameter hole is more uniform.

Improved drilling in reinfored concrete.
Compared with normal SDS-plus bit, locking of bits is reduced when impacting reinforced bar.

Penetrates throught deck plateDrill steel plate (about 1 mm in tickness) and concrete easily in one process.

Drill hole near to round
This SDS-plus bit with its delta carbide tips greatly reduces rifling, and shapes of drilled hole is, ear to round.
Improved positioning performance
Ease of drilling when positioning because of non-chisel point cutting edge.

RISS - Ets NOURRISSON Claude - 4 Impasse des avenues BP 124 - 42603 MONTBRISON Cedex - FRANCE
Tél. : +33 (0)4 77 58 04 01 / +33 (0)4 77 58 21 33 - Fax : +33 (0)4 77 58 13 86 - E-mail : riss@riss-france.com