• Calculate Rockwell Hardness quickly and accurately
• Range: 15 to 65 Rockwell on the C scale
• Features a steel ball of precise weight and shape which is dropped from an exact height to yield an accurate Rc reading
• Check overheated or repaired crankshaft journals to confirm correct hardness
• Can also be used on flywheels
• Weighs just 4 ounces
• 9-1/4" long
• Includes protective case and instructions

View or Download The Product Instructions