Zenesis Core Drill Bit for drilling concrete The Zenesis ZX4-2 Construction or Concrete Core Drill Bit is designed to drill through concrete, cured concrete, and rebar. Zenesis Technologies offers top tier diamond products and concrete coring bits. The concrete coring bits come in a variety of sizes and offer custom core bits as well. Exclusive "Pattern" Technology for maximum performance!For faster drilling of cured concrete with medium to heavy rebarBalance between life and speed14" Barrell lengthMade in Korea Size Grade 2 x .145 x 1 1/4-7 ZENESIS 2 1/2 x .145 x 1 1/4-7 ZENESIS 3 x .145 x 1 1/4-7 ZENESIS 3 1/2 x .145 x 1 1/4-7 ZENESIS 4 x .145 x 1 1/4-7 ZENESIS 4 1/4 x .145 x 1 1/4-7 ZENESIS 4 1/2 x .145 x 1 1/4-7 ZENESIS 5 x .145 x 1 1/4-7 ZENESIS 6 x .145 x 1 1/4-7 ZENESIS 6 1/4 x .145 x 1 1/4-7 ZENESIS 6 1/2 x .145 x 1 1/4-7 ZENESIS 7 x .165 x 1 1/4-7 ZENESIS 8 x .165 x 1 1/4-7 ZENESIS 9 x .187 x 1 1/4-7 ZENESIS 10 x .187 x 1 1/4-7 ZENESIS 12 x .187 x 1 1/4-7 ZENESIS
