Shaviv 151-29212 This basic H.S.S. blade used for steel, aluminum for smaller size holes and has a clockwise rotation.
Micro Finishing, Shaviv Deburring Tools by Vargus
Compare
Shaviv 151-29212 High Speed Steel Blade B-10
Shaviv 151-29212 High Speed Steel Blade B-10
$1.40