4-10mm Drill Bits Set Option: Masonry / HSS / Woodworking /Combination Drillbits

5pc masonry drill bits: 4-5-6-8-10mm. 5pc Titanium Coated HSS drill bits: 4-5-6-8-10mm. 5pc woodworking drill bits: 4-5-6-8-10mm. 15pc combination set including above three models. Use with corded and cordless rotary drills.