• Small 4 Flute high speed steel reamer available in sizes from .062 to .0655.
• Measures 2 1/2" overall length
• This reamer is used to size the emulsion tube (E-Tube) for engines used in Kart Racing, Mini Bikes and other small passage carburetor applications.

Please Note: Pin Vise and E Tube are not included with this purchase.

Most people do not realize that a .001” (one thousandths) increase in a jet or air bleed, changes the volume traveling through that passage by approximately 5 to 7 %, which is huge comparative to the size change. Although we offer and sell a drill bit set, we strongly recommend finalizing these sizes with new jets and using a reamer. The drill set is an economical tool for making changes and establishing a jet/pilot package that best suits your application. With the substantial effect of a .001 change, drill bits have a tendency to leave burred or spiral cut passages. Drill bits will not offer a consistent/smooth passage size with repeated use, and will cut larger and larger as the drill becomes dull.