SPI Cast Iron Micrometer Stand for 0.5" to 4" Micrometers. Micrometer not included. Features an adjustable angle position to allow bench top use of hand micrometers and other gages that have sufficient frame area for the holder. Rubbery pad on both jaws protects delicate instruments, and rubber feet prevent slipping during use. For over 60 years, SPI has introduced innovative products to the metalworking and laboratory industries. SPI measuring instruments are durable, precise, and reliable — all backed by an Industry leading 2-Year warranty.