This Starrett 721B-6/150 Electronic Caliper is a top-quality tool for measuring metalworking materials. With a range of 0-6 inches or 0-150mm, it is perfect for precise measurements in the workplace. Made in the United States and featuring SPC output, this digital caliper is reliable and efficient. The caliper type is a digital caliper with a resolution of 0.0005 inches, and it comes with a California Prop 65 warning. The brand is Starrett, and the model number is 65144. This caliper is ideal for use in various industries, including metalworking and manufacturing.