Diamax-1 3/8" Cyclone REVERSE Thread Half-gas T-segment core

The Diamax Cyclone CNC Core Bit SKU CDBHR138 The Diamax Cyclone CNC Core Bit SKU CDBHR138 is a 1-3/8″ diamond core drill bit with a reverse-thread fitting designed for CNC drilling of natural stone, engineered stone, and granite. Its design makes it ideal for precise, deep holes in fabrication and countertop applications. Key Features 1-3/8″ diameter for common drilling sizes in stone fabrication. Reverse thread fitting secures the bit on CNC spindles during high-speed rotation. Diamond segmented design provides fast and consistent cutting performance. Optimized for wet CNC drilling to manage heat and maximize bit life. Durable construction for repeated use in granite and engineered stone. Specifications Specification Detail SKU CDBHR138 Bit Diameter 1-3/8″ Thread/Fitting ½″ gas male, reverse thread Usable Length ~3″ Recommended RPM ~2,000–2,500 Cutting Type Wet CNC core drilling Material Compatibility Natural stone, engineered stone, granite Available Items and Sizes ITEM # SIZE FITTING USABLE LENGTH MAX RPM CDBYH114 1 1/4“ 1/2 gas male 3″ 2,300 CDBYH138 1 3/8“ 1/2 gas male 3″ 2,300 CDBYH112 1 1/2“ 1/2 gas male 3″ 2,300 CDBHR138 1 3/8“ 1/2 gas male, Reverse Thread 3″ 2,300 CDBYH012 1/2“ 1/2 gas male 3″ 2,300 CDBYH014 1/4“ 1/2 gas male 3″ 2,300 CDBYH034 3/4“ 1/2 gas male 3″ 2,300 CDBYH036 3/16“ 1/2 gas male 3″ 2,300 CDBYH038 3/8“ 1/2 gas male 3″ 2,300 CDBYH100 1 1/2 gas male 3″ 2,300 CDBHR014 1/4“ 1/2 gas male, Reverse Thread 3″ 2,300