Model:

13-single speed constant speed

13 multi-function-electrodeless speed control forward and reverse tapping

16 Type single speed fixed speed

16 multi-function-electrodeless speed control forward and reverse tapping

23 Type-Single speed fixed speed + connecting rod drill chuck

(Drilling and coring) 23-type single speed + external cooling fixture

(Drilling and coring) 23-type single-speed + inner cold kettle

23 multi-function-speed control forward and reverse tapping

(Drilling and tapping) 23 multi-function + external cooling

(Drilling and tapping) 23 multi-function + inner cold water bottle

23 multi-function + tapping main body +6 tapping Chuck

(Full set) 23 multi-function-cold drilling and coring

(Full set) 23 multi-function-internal cold drilling and coring

28 Type-Single speed fixed speed + connecting rod drill chuck

(Drilling and coring) 28-type single speed + external cooling fixture

(Drilling and coring) 28-type single speed + inner cold kettle

28 multi-function-speed control forward and reverse tapping

(Drilling and tapping) 28 multi-function + external cooling

(Drilling and tapping) 28 multi-function + inner cold water bottle

28 multi-function + tapping main body +6 tapping Chuck

(Full set) 28 multi-function-cold drilling and coring

(Full set) 28 multi-function-internal cold drilling and coring