Description:

Comprehensive and time saving kit of spark plug thread repair tools.

Especially suitable for the repair of deep-seated plug configurations. 
Incorporates taper and plug taps together with integrated ream. 
Stepped tap ensures correct alignment of cutter in existing spark plug hole. 
Extension tools allow easy access to the bottom of the plug recess. 
Contents: 
TAP - M14 X 1.25 
STEP-TAP - M14 X1.25 : M15.8 X 1.25 
WRENCH - ID - 3/8" 
T-BAR - 3/8" 
INSERT DRIVE - ID - 3/8" 
SEAT CUTTER 
INSERTS - L15MM & L9.4MM 
ALLEN KEY - 2.5MM (FOR NO.3 WRENCH) 
METAL CASE

Instruction:

This tool is designed for repairing stripped or damaged threads on spark plug seat.

1.Tap the hole & clean the seat

Remove the spark plug.

Install the step-tap with wrench and T-bar, then tap the damaged M14 hole thread to be M15.8.

Back the wrench and T-bar and step-tap.Place seat cutter over the step-tap shank, and place wrench & T-bar to completely clean up the seat.

2.Install the insert into the hole

Choose an insert with different length provided(L:15mm,9.4mm)

Apply glue on surface of the insert. Screw the insert onto the insert drive and into the hole.

3.Remove installer from hole

Release the upper hex nut and axle of insert drive, then back the tool from insert.

Use the M14×1.25mm tap into the insert, tap the thread again and clean up the glue inside.

Packing details: