Lansky Diamond/Ceramic 4-Rod Turn Box Dropship the Diamond Steel can align

the Diamond Steel can align your knife edge

this is commonly called the BESS Tester

Rocker Arm Ball for Models 387 / SF1000

Being a natural stone there is not a specific grit number but it graded to be roughly a 600 to 800 grit

Lansky Diamond/Ceramic 4-Rod Turn Box Dropship the Diamond Steel can alignEasy to use, right or left handed. Rods store in the hardwood case. The Lansky Turn Box has been improved with a Diamond sharpening stage. The diamond rod sharpens more quickly than the medium ceramic it replaces. The 5" rods store in the versatile hardwood turn box that is the sharpening rod holder. Two preset sharpening angles make this a good economical choice for just about any knife. Kit includes 4 rods (2 medium diamond and 2 fine ceramic) and