1C Collets | McMaster-Carr

	System of Measurement System of Measurement

Inch

	Size Size

	Face Type Face Type

	Round

	Collet Type Collet Type

	16C

	For Holding For Holding

Workpieces

	Body Diameter Body Diameter

1.89"

	Material Material

Steel

	Internal Thread Size Internal Thread Size

1 11/16"-20

	External Thread Size External Thread Size

M47.5

	For Use With For Use With

Lathes

	Overall Length Overall Length

4.31"

	TIR (Total Indicated Runout) Accuracy TIR (Total Indicated Runout) Accuracy

0.0008"

0.0011"

0.0015"

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

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19 Products

16C Collets

Insert into a 16C collet chuck or holder to tightly grip round workpieces. They provide a stronger hold on small workpieces than a standard lathe chuck. These collets have both external and internal threads.

For technical drawings and 3-D models, click on a part number.

Round
Size	TIR (Total Indicated Runout) Accuracy	Workpiece Dia. Tolerance	Body Dia.	Overall Lg.	Internal Thread Size	External Thread Size	External Thread Pitch	Material		Each
1/4"	0.0008"	-0.004" to 0"	1.89"	4.31"	1 11/16"-20	M47.5	1.75mm	Steel	00000000	000000
5/16"	0.0008"	-0.004" to 0"	1.89"	4.31"	1 11/16"-20	M47.5	1.75mm	Steel	00000000	00000
3/8"	0.0008"	-0.004" to 0"	1.89"	4.31"	1 11/16"-20	M47.5	1.75mm	Steel	00000000	00000
7/16"	0.0011"	-0.004" to 0"	1.89"	4.31"	1 11/16"-20	M47.5	1.75mm	Steel	00000000	00000
1/2"	0.0011"	-0.004" to 0"	1.89"	4.31"	1 11/16"-20	M47.5	1.75mm	Steel	00000000	00000
9/16"	0.0011"	-0.004" to 0"	1.89"	4.31"	1 11/16"-20	M47.5	1.75mm	Steel	00000000	00000
5/8"	0.0011"	-0.004" to 0"	1.89"	4.31"	1 11/16"-20	M47.5	1.75mm	Steel	00000000	00000
11/16"	0.0011"	-0.004" to 0"	1.89"	4.31"	1 11/16"-20	M47.5	1.75mm	Steel	00000000	00000
3/4"	0.0015"	-0.004" to 0"	1.89"	4.31"	1 11/16"-20	M47.5	1.75mm	Steel	00000000	00000
13/16"	0.0015"	-0.004" to 0"	1.89"	4.31"	1 11/16"-20	M47.5	1.75mm	Steel	00000000	00000
7/8"	0.0015"	-0.004" to 0"	1.89"	4.31"	1 11/16"-20	M47.5	1.75mm	Steel	00000000	00000
1"	0.0015"	-0.004" to 0"	1.89"	4.31"	1 11/16"-20	M47.5	1.75mm	Steel	00000000	00000
1 1/16"	0.0015"	-0.004" to 0"	1.89"	4.31"	1 11/16"-20	M47.5	1.75mm	Steel	00000000	00000
1 1/8"	0.0015"	-0.004" to 0"	1.89"	4.31"	1 11/16"-20	M47.5	1.75mm	Steel	00000000	00000
1 3/16"	0.0015"	-0.004" to 0"	1.89"	4.31"	1 11/16"-20	M47.5	1.75mm	Steel	00000000	00000
1 1/4"	0.0015"	-0.004" to 0"	1.89"	4.31"	1 11/16"-20	M47.5	1.75mm	Steel	00000000	00000
1 3/8"	0.0015"	-0.004" to 0"	1.89"	4.31"	1 11/16"-20	M47.5	1.75mm	Steel	00000000	00000
1 1/2"	0.0015"	-0.004" to 0"	1.89"	4.31"	1 11/16"-20	M47.5	1.75mm	Steel	00000000	00000
1 5/8"	0.0015"	-0.004" to 0"	1.89"	4.31"	1 11/16"-20	M47.5	1.75mm	Steel	00000000	00000