Add to Wishlist
Part# 12-11600


A simple tool to gap 2-,3-or 4 electrode 18mm spark-plugs. Only 2" overall, comfortably handheld. Precision made of stainless steel. 'T' handle adjusters move the ground electrodes closer to the center electrode until wire feeler identifies proper gap. Adjusters have fine thread with ball tips for precise movement.
  • Customers Also Viewed
  • Frequently Purchased With


Ralph C Verified Purchase


July 27, 2021

works easily and as intended.

September 14, 2020

Extremely easy to close the gaps. I actually went to far on my first plug, just because I am used to my old gapping tool. The old one is that one with the small turning ears, that makes your hand sore after only a few spark plugs.

98x L
August 22, 2019

Works good! Would recommend

Sherman C
December 15, 2018

This is my second Precise-Gap gapping tool. A friend, that I work with sometimes, was so impressed with my first one so I gave it to him and ordered me a new one. So much easier and faster than the old red, mounted, gapping too. I love it.

John P
September 3, 2018

I like it, very precise and easy to use. A good value! FYI, you should also buy the tool for increasing the gap since this gap tool only closes the gap

Lisa M
July 31, 2017

Absolutely hands down, the best plug gap tool available. All stainless steel with precision, ball-tip machined T-handle adjuster screws. Stainless ball-tip adjusters coupled with the T-handle provide precise electrode movement. Similar looking tools use a thumb type five cent screw that is pinched off on the end that contacts the electrode when setting your gap. The thumb screw usually has to be aided by a pair of vise grips to achieve movement and the pinched off square end that contacts the electrode yields unpredictable movement of the electrode.

November 4, 2014

Watch out for price increase, was billed more than the current catalog had it in. Seems this isnt the first time, others said same thing. Since buying up other business pricing are going up, not happy.

Kim P
February 15, 2019


Please note, Aircraft Spruce Canada's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce Canada assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

View in Catalog

View Image View in Catalog