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Designed to work with cylinder bores from 3.750" to 4.155".
That includes the popular engine bore sizes of 4.00", 4.030", 4.060" inch bores. Perfect for Chevy small blocks but will work with other engines as well.
Perfect for all engine types and block materials.
240 grit, EXCELLENT for reringing jobs or final bore.
Tool is labeled as 4.125" diameter but is actually slightly larger to provide the required wall force when honing a 4 1/8" cylinder bore
Packing contents: 1 piece
