"1. HSS Valve guide reamers. 2. HSS Reamer Spiral Type. Squared Head - Fixed Reamers 3. This set includes 1/4"" inches - 4"" inches Long, 9/32"" inches - 6"" inches Long, 5/16"" inches - 6"" inches Long, 11/32"" inches - 6"" inches Long and 3/8"" inches - 6"" inches Long. 4. This set is made in India and we ship Express with valid tracking to USA and worldwide."