Omega Products BT40 Slim Shrink Fit Chuck - G2.5 - 25,000RPM - 20mm Clamping Diameter - 160mm Gauge Length Outer Cartridge Left-hand spiral flute with right-hand

Left-hand spiral flute with right-hand cutting: Efficient chip evacuation and smooth hole finishing for consistent results

Exact UNEF 7/16x28 Go Gauge: Delivers consistent Go-side checks for right-hand 2A threads

technicians and hobbyists who need reliable hole finishing in a variety of materials

trusted for consistent performance across industrial tasks

while the broad clamping range supports a wide range of jobs

Omega Products BT40 Slim Shrink Fit Chuck - G2.5 - 25,000RPM - 20mm Clamping Diameter - 160mm Gauge Length Outer Cartridge Left-hand spiral flute with right-handThe Omega BT40 Slim Shrink Fit Chuck is a compact, high precision toolholder designed for tightaccess milling and demanding highspeed machining. Its ideal for engineers, machinists, and workshop environments that need repeatable clamping and quick, reliable tool changes in limited space. Manufactured to BT MAS403 (JIS 6339) standards, this chuck features a 3degree taper and Form AD B for optimal balance and rigidity. Its balanced to G2. 5 at 25,000