4341240 caterpillar:gauge GAUGE-OIL LEVEL

Magafor 434 Series Cobalt Steel Single-End Countersink, Uncoated (Bright) Finish, 3 Flutes, 82 Degrees, Round Shank, 0.315" Shank Dia., 0.488" Body Dia.
Magafor Creates an 82-degree countersink that accepts a flat-head fastener so it sits flush with the surface || Three flutes provide better chip clearance than four flutes to prevent clogging || Cobalt steel provides extended tool life compared to high-speed steel when cutting hard materials || Uncoated (bright) finish has no additional surface treatment or coating || Single-ended tool has a round shank that accommodates most drill chucks