• Housed in a convenient blow mold storage case
• Accuracy within + or -3%
• Guaranted to meet or exceed federal spec #GGW-00686
• CR-MO steel ratchet gears for long life
• All parts, including shaft, are heat treated, carbonized quenched and twice tempered for long life and accurate performance
• Nickel and chrome plated sandblasted shaft to reduce metal fatigue
• Metric scale included
• Warranty on calibrations: 90 days
• Length: 18.25