Ground drill bits in high performance high speed steel + titanium nitride anti-slip coating.;The TiN coating increases the surface hardness value to 2,300 HV.;The TiN coating increases the heat-resistance to approx. 600 C.

• Terrax A250215T HSS TiN Drill Bit Set 25 Piece in Sheet Metal Case

Terrax A250215T HSS TiN Drill Bit Set 25 Piece in Sheet Metal CaseRuko