SPI Cast Iron Micrometer Stand for Micrometers 0.5" to 4" Micrometers. Micrometer not included. Features an adjustable angle position to allow bench top use of hand micrometers and other gages which have sufficient frame area for the holder. Rubbery pad on both jaws protects delicate instruments. Rubber feet on the base protect work surfaces and prevent slipping during use. Clamp opens approximately 1.25 inches.