Nubatama Ume 220 Grit Stone. 205mm x 75mm x 50mm. This is a followup video, where I initially soaked the stone and Introduced the Tojiro 240 mm Western Deba.
In this video I show the Weatern Deba after the initial chips have been removed using the Nubatama 60 grit Ume stone, showing the coarse pattern from the 60 grit stone and the result after using this stone to rapidly remove those scratches.
Since the scratches from the 60 grit stone are coarser than what you get using a DMT XXC or Atoma 140, this stone will be an excellent choice as a followup for removing very coarse scratches from any of these very coarse alternatives. The stone itself when resoaked saturates quickly. Initial soaking should be noted on the first video. The stone doesn't generate a lot of mud and acts quickly to remove the coarse scratch pattern and replace it with a toothy but sharp 220 grit finish. It is a tough stone and doesn't require great care to keep it from gouging.