Cilindro motore da 4" a 4-1/8" da 100mm a 105mm foro levigato spazzola sfera 240 grana---Nuovo
Flexible Cylinder Ball Hone for all engine applications utilizing a 3.750" to 4.155"bore. 240 grit, EXCELLENT for reringing jobs or final bore. Perfect for Chevy small blocks but will work with other engines as well.