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Multiple warehouses located from the west to the east in the USA ensure fast delivery.
Feature:
This handy spark plug gap tool set will help you measure precise gaps. It is safe with no risk of electrode damage and eliminates misfires and error codes due to inaccurate gaps on your spark plugs.
Fitment:
For most 10mm 12mm 14mm 16mm spark plugs
Will not work for long reach or short reach plugs spark plugs, please check your spark plug’s size before purchase.
Not compatible with 18mm thread and longer style spark plugs!
Steps for adjusting gap:
Just place your spark plug onto the spark plug gapper and then use your desired feeler, then screw the knob slowly until you get your desired gap thickness.
Tip for adjusting gap:
Some spark plugs electrode will bounce back when adjusting gap. So if your clearance target is 0.44mm, we suggest you use 0.42mm. In this way when it springs back you will get it to 0.44mm.
Spark plug gapping tool:
Color: Red
Material: Aluminum Alloy.
Size:As the Picture Shows
32-Blades Feeler Gauge:
Durable for use: Constructed from hardened tempered steel with a lube oil coating to prevent pitting and corrosion.
Each measuring feeler gauge has 32 blades, with measurement ranging from 0.0015inch (0.04mm) - 0.035inch (0.88mm), Including one 0.010Inch(0.25mm) brass blade to use with electronic ignitions.
Dual marked for both SAE (Standard) and Metric measurements
The readings are etched into feeler gauge for easy identification.
Easy to get into tight spaces and check tolerances
Foldable, compact, pocket-sized with a thumb nut for blade selection and easy blade removal.
An essential gap gauge tool for precision measurements in any workshop
Can perform a wide variety of functions including measuring fret clearance, fingerboard clearance, hardware installation, to setup proper nut slot depth, fret slot width, string to fret clearances, neck relief at the 12th fret and fret rocker, string height at the nut, pickup height on electric guitar, truss rod adjustment and shimming bolt-on necks, engine tappets, spark plugs, ignition systems, valve clearance, bearing clearances, piston ring gaps etc.
Material: stainless steel, One Brass Sheet.
Size: 96*13mm, about 3.8* 0.5 inches
Color: silver
Measurement: SAE & Metric
Blade sizes include:
| NO. | INCH | MM | NO. | INCH | MM | NO. | INCH | MM | NO. | INCH | MM |
| 1 | 0.0015 | 0.04 | 9 | 0.008 | 0.20 | 17 | 0.015 | 0.38 | 25 | 0.023 | 0.58 |
| 2 | 0.002 | 0.05 | 10 | 0.009 | 0.23 | 18 | 0.016 | 0.40 | 26 | 0.024 | 0.60 |
| 3 | 0.0025 | 0.06 | 11 | 0.010 | 0.25 | 19 | 0.017 | 0.43 | 27 | 0.025 | 0.63 |
| 4 | 0.003 | 0.08 | 12 | 0.010 | 0.25 | 20 | 0.018 | 0.45 | 28 | 0.026 | 0.65 |
| 5 | 0.004 | 0.10 | 13 | 0.011 | 0.28 | 21 | 0.019 | 0.48 | 29 | 0.028 | 0.70 |
| 6 | 0.005 | 0.13 | 14 | 0.012 | 0.30 | 22 | 0.020 | 0.50 | 30 | 0.030 | 0.75 |
| 7 | 0.006 | 0.15 | 15 | 0.013 | 0.33 | 23 | 0.021 | 0.53 | 31 | 0.032 | 0.80 |
| 8 | 0.007 | 0.18 | 16 | 0.014 | 0.35 | 24 | 0.022 | 0.55 | 32 | 0.035 | 0.88 |
Package Content (as pictured):
1 x Spark Plug Gap Tool
1 x Feeler Gauge
Spark plug is NOT included.
Will accept payment from credit card, debit card, apply pay, google pay and paypal.

