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外牙接頭（SXT）

Nominal	Socket Type			Structural Diameter
SIZE	d1	d2	I	D	d	L	W	PT（牙/寸）
1/2"	22.40	21.52	30.0	29.0	13.0	53.5	29.0	14
3/4"	26.45	25.42	35.0	34.0	17.0	61.5	34.0	14
1"	32.55	31.37	40.0	41.0	22.5	69.5	41.0	11
1-1/4"	38.60	37.31	44.0	47.0	31.0	73.0	47.0	11
1-1/2"	48.70	47.21	55.0	58.0	36.0	86.0	58.0	11
2"	60.80	59.10	63.0	72.0	47.0	100.0	72.0	11
2-1/2"	76.60	75.30	64.0	88.0	62.5	116.0	88.0	11
3"	89.60	88.29	64.0	106.0	74.0	127.5	106.0	11
4"	114.70	113.20	84.0	135.0	96.5	154.0	135.0	11