Chamber uniform (minimal sandpaper ream) ...an ID of .780" x .780" just under a .800" (Group 5) - NOT over reamed. OD 1.735" , Length 5 1/8" , Height 1 1/4" , Bore depth 15/16" , Weight 1.0510 oz (29.8g) , Mortiser ID 5/32" - Tenon 9/64" on a tight original Vulcanite white spot diamond shape shank (no chatter issues). Cleaned and sanitized ... lite bowl coat ... no ghosting.  NOTE: restained to match original Red/Bark.