One of the most popular dry/wet core bits in US/Canada market; Engineered with the most advanced heat-resistant metal bond; T-shape segments effectively prevent segments from coming off; Brazed diamond protection inside & outside of the barrel; Blind-hole bits available from 3/16" to 5/8" in diameter; Material: Engineered Stone, Granite, Quartzite; Dry or Wet use. ITEM # DIAMETER & STYLE DRILLING DEPTH THREADS MAX. RPM 23701-04018 3/8” ELEMENT Core Bit 2-1/2” ⅝”-11 6,500 23701-04017 1/2” ELEMENT Core Bit 2-1/2” ⅝”-11 6,500 23701-04015 5/8” ELEMENT Core Bit 2-1/2” ⅝”-11 6,500 23701-04014 3/4” ELEMENT Core Bit 2-1/2” ⅝”-11 6,500 23701-04004 1” ELEMENT Core Bit 2-1/2” ⅝”-11 6,500 23701-04001 1-1/4” ELEMENT Core Bit 2-1/2” ⅝”-11 6,500 23701-04002 1-3/8” ELEMENT Core Bit 2-1/2” ⅝”-11 6,500 23701-04003 1-1/2” ELEMENT Core Bit 2-1/2” ⅝”-11 6,500 23701-04013 1-3/4” ELEMENT Core Bit 2-1/2” ⅝”-11 6,500 23701-04012 2” ELEMENT Core Bit 2-1/2” ⅝”-11 6,500 23701-04016 2-1/4” ELEMENT Core Bit 2-1/2” ⅝”-11 4,000 23701-04010 2-3/8” ELEMENT Core Bit 2-1/2” ⅝”-11 4,000 23701-04019 2-1/2” ELEMENT Core Bit 2-1/2” ⅝”-11 4,000 23701-04026 3” ELEMENT Core Bit 2-1/2” ⅝”-11 4,000 23701-04027 3-1/2” ELEMENT Core Bit 2-1/2” ⅝”-11 3,500 23701-04028 4” ELEMENT Core Bit 2-1/2” ⅝”-11 3,500 23701-04025 3/16” ELEMENT Blind-Hole Bit 1-1/2” ⅝”-11 8,000 23701-04020 1/4” ELEMENT Blind-Hole Bit 1-1/2” ⅝”-11 8,000 23701-04021 5/16” ELEMENT Blind-Hole Bit 1-1/2” ⅝”-11 8,000 23701-04022 3/8” ELEMENT Blind-Hole Bit 1-1/2” ⅝”-11 8,000 23701-04023 1/2” ELEMENT Blind-Hole Bit 2-1/4” ⅝”-11 8,000 23701-04024 5/8” ELEMENT Blind-Hole Bit 2-1/4” ⅝”-11 8,000