7/16 inches shank adapter made of top alloy-steel material ensure heavy duty capability and super-fast to attach to speed all your jobs improve your work efficiencyThis arbor fit most brand 1-1/4 to 6 inches such as , ,, Cle-Line etc. as long as the can fit 1/2 thread with 2 pins0.43 inch Arbor with PIN DRIVE Positive Lock and Quick Change function helping prevent the from locking on the arbor. This is the preferred design is fast and easy to engage and disengage7/16 inches hex shank arbor:Made of alloy-steel materialDesigned for 1-1/4 to 6.625 inches Pin Drive, Positive Lock, and Quick Change that make this Speed Arbor a premium tool you will fully enjoy using.Makes work go faster with improved ease. You get better than expected results in less time.Colour:blackMaterial:steelSize:120*11mmPackage Contents:3x twist drill1x hex wrench1x connecting rodOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.