Inside Spring Caliper Range 0 in to 4 in/0 mm to 100 mm Joint Type Spring Maximum Measurement 100 mm 4 in Maximum Measurement - Inch 4 in Maximum Measurement - mm 100 mm Minimum Measurement - Inch 0 in Minimum Measurement - mm 0 mm Nut Type Quick-Spring Tip Type Solid Points Caliper Material Steel Includes - Leg Style Flat