400 Grit Sunnen Hone Stones | 1.58"-1.77" Range | SNJ3-J87

400 Grit Stones are ideal for fine finishing of previously bored holes in aluminum, bronze and cast iron.

• Silicon-Carbide stones
• Stone set consists of 3 stones
• Sized to fit SNJ-10 hone (sold separately)
• Gives an 8 Ra finish

NOTE: Goodson is authorized to ship Sunnen Products only within The United States and Canada.