Name: 21mm Spark Plug Socket 6-Point
Brand: Tool
SKU: 890
Availability: InStock

21mm Spark Plug Socket 6-Point

Size chart

Clothing Size Conversion Chart
Category	US	EU	UK	Chest (in)	Waist (in)	Hips (in)
Men	XS	44	34	32-34	26-28	33-35
	S	46	36	34-36	28-30	35-37
	M	48	38	38-40	32-34	39-41
	L	50	40	42-44	36-38	43-45
	XL	52	42	46-48	40-42	47-49
Women	XS	32	6	31-32	24-25	33-34
	S	34	8	33-34	26-27	35-36
	M	36	10	35-36	28-29	37-38
	L	38-40	12-14	37-39	30-32	39-41
	XL	42	16	40-42	33-35	42-44
Youth	XS	128	7	26-28	23-24	26-28
	S	134	8	28-30	24-25	28-30
	M	140	10	30-32	25-26	30-32
	L	146	12	32-34	26-27	32-34
	XL	152	14	34-36	27-28	34-36

Pants Size Conversion Chart
Category	US	EU	UK	Waist (in)	Hip (in)	Inseam (in)
Men	28	44	28	28	34	30
	30	46	30	30	36	31
	32	48	32	32	38	32
	34	50	34	34	40	33
	36	52	36	36	42	34
Women	0	32	4	24	34	30
	2	34	6	25	35	30
	4	36	8	26	36	31
	6	38	10	27	38	32
	8	40	12	28	40	32

Shoes Size Conversion Chart
Category	US	EU	UK	Foot Length (in)
Men	6	39	5.5	9.25
	7	40	6.5	9.625
	8	41	7.5	10
	9	42	8.5	10.25
	10	43	9.5	10.625
	11	44	10.5	11
	12	45	11.5	11.25
	13	46	12.5	11.625
Women	5	35	2.5	8.5
	6	36	3.5	8.875
	7	37	4.5	9.25
	8	38	5.5	9.625
	9	39	6.5	10
	10	40	7.5	10.25
	11	41	8.5	10.625
	12	42	9.5	11
M (Unisex)	5	37	4.5	8.75
	6	38	5.5	9
	7	39	6.5	9.5
	8	40	7.5	10
	9	41	8.5	10.25
	10	42	9.5	10.625
	11	43	10.5	11
	12	44	11.5	11.25

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21mm 6-point spark plug socket with wall thickness 3.2mm, length 65mm, drive size 3/8″.

Specification:

Model	T-DT190TW-10
Weight	150g
Contact point	6-point
Measurement standard	Metric
Diameter	21mm
Outer Diameter	27.8mm
Length	65mm
Wall thickness	3.2mm
Material	Chrome-vanadium steel
Inside part	Rubber sleeve
Drive size	3/8 inch

Tips: What to do if the spark plug is broken when it is removing?
Although the spark plug socket is a good tool for disassembling spark plugs, it is still unavoidable to break the spark plug when disassembling the spark plug. Basically the white ceramic insulator is removed and broken in disassembly, but the spark plug head is still stuck there. How to take out the broken spark plug is a very technical matter. If you do not have experience in this area, it is best not to try it lightly.
There are three ways to take out the broken spark plug:

Welding
Weld a slender iron bolt on the broken spark plug head by welding, and then remove the broken spark plug. This method usually requires many times of welding succeeding, and it is very difficult.
Reverse thread tool
Because spark plugs are disconnected more frequently, there is a special reverse thread tool for spark plugs. Use a counter-thread tool to tap the thread inside the broken spark plug head, and then turn the tool to take out the broken head. When tapping the thread, the thin iron wire will fall into the cylinder. After removing the broken head, use a magnetic rod to suck out the thin iron wire as much as possible.
Smash
Use a long flat-head screwdriver to smash the broken head to force it into the cylinder, and then use a magnet to suck out the broken spark plug. This method will not only damage the threads on the cylinder, but also damage the engine due to unclean debris, so this method is not recommended.