Oatey 4 In. Single Size Test Ball Stiletto Interchangeable blades have a slim-tip

Interchangeable blades have a slim-tip to fit tight terminal blocks

Grooved hex shank prevents slipping in drill chuck or bit extension

serviceable brushes

with up to 11 hours of runtime for a full day of work

Oatey 4 In. Single Size Test Ball Stiletto Interchangeable blades have a slim-tipSingle Size Test Ball is a must for those involved in the installation and repair of residential, commercial and industrial pipping systems. Can be used for head pressure testing or as a blocking plug for low pressue air testing. Easily fits test tees, sanitary tees, floor drains and roof vents. Much more flexible than traditional mechanical plugs. Made from long lasting, natural rubber. Molded with Cherne's trademarked rib design. Includes a 12 In.