"1. HSS Valve guide reamers. 2. HSS Reamer Spiral Type. Squared Head - Fixed Reamers 3. This set includes 4mm - 3"" inches Long, 4.5mm - 4"" inches Long, 5mm - 4"" inches Long, 5.5mm - 4"" inches Long and 6mm - 5"" inches Long, 7mm - 6"" inches Long, 8mm - 6"" inches Long, 9mm - 6"" inches Long, 10mm - 6"" inches Long. 4. This set is made in India and we ship Express with valid tracking to USA and worldwide."