Premium Flex 5 x 1/4 x 5/8-11 Metal 10pk Victor The hose is 1/4 inch

The hose is 1/4 inch inside diameter which is standard for 50 foot long hoses and will provide plenty of flow in most cases

The hose connection is standard B-size (9/16-18) thread for most twin welding hose

1          3/64 - 3/32"

60 grit zirconia flap discs are considered medium coarse for sanding and polishing steel

Premium Flex 5 x 1/4 x 5/8-11 Metal 10pk Victor The hose is 1/4 inchPremium Flex combines the best raw materials with German technology to produce the best cost per grind ratio on the market. These Type 27 Depressed Center grinding wheels are designed for weld grinding and deburring of steel, and general metalworking.