Standard Abrasives, Precision Roll, R4, 1/4" x 1-1/4" x 1/8", 80 Grit, Straight, Each

Standard Abrasives Replacement Precision Cartridge Rolls
The next step beyond cartridge rolls when it comes to precision porting and polishing jobs. Unique construction provides a longer lasting, vibration-free, high-end abrasive tool like no other in the automotive aftermarket. They are used by some of the top head porting shops and schools throughout the world.

• Smooth operation/vibration-free provides smoother final finish
• Abrasive core allows the entire roll to be used, nothing is wasted
• Outlasts a normal cartridge roll up to 7 times its normal life
• Can be used on aluminum and cast iron heads