O-Ring Colors indicate the following:

DeVilbiss StartingLine touch-up spray guns have 30 psi of inlet pressure

Binks PUMP ROD 4

Includes a 1/8" solid carbide spiral cutter and alignment pin

Air Diffuser Seal

Steelex Plus D4521 - 3/8" HSS Brad Point Bit 14 O-Ring Colors indicate the following:D4521 3 8" HSS Brad Point Bit Just the replacement pointed drill bit you need. The D4521 3 8" HSS Brad Point Bit was designed with a center pin or Brad Point to keep the bit from wandering. Brad point bits drill straight, clean holes in wood far better than standard twist bits. They can also be used to drill through plastics, but are not for drilling through metal. The D4521 is made from HSS or high speed steel and has been heat treated for hardness