KnKut 21 Piece Stubby Length Drill Bit Set Nib Files For both 14mm and 18mm

For both 14mm and 18mm spark plug threads

plus the GM TBI adapter

Durably constructed for long life

M906 & BMW X6 applications

Also shows +/- Amps for easy diagnosis of current leakage problems

KnKut 21 Piece Stubby Length Drill Bit Set Nib Files For both 14mm and 18mmFeatures and Benefits: No Center Punch or Pilot Hole required Rounder More Accurate Holes Lowest Cost Per Hole Drills Stainless Steel and Titanium Alloy Made In USA Premium grade KnKut Drills are manufactured from a high grade Molybdendum high speed steel, that has high vanadium content. KnKut Performance Drills are salt nitride treated, actually penetrating the tools surface giving KnKut Drills the hardness to drill tough materials such as stainless