Dynabrade 98270 1/2" Male Coupler 
3M 26116, PPS Series 2.0 Adapter, Type S25, 1/4 Female, 19 Thread BSP, 7100135957 
Insize 2177-121, DIGITAL ANGLE METER, 0~999?, 6974029773334
$329.26
Resolution 0.1?
Accuracy ?2? for 90? rotation @30?/sec
Clockwise and counter-clockwise operation
Memory of 250 results, can upload to the computer
Back with magnet
Power off in 2 minutes automatically
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