100-TG Collets | McMaster-Carr

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TG-100

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Machine Taper Number

Shank Taper Number

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Alloy Steel

Chrome Alloy Steel

Nickel Chrome-Moly Steel

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For Use With

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U.S.–Mexico–Canada Agreement (USMCA) Qualifying

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EAR99

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Overall Length

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Total Indicated Runout (TIR) Accuracy

Shank Diameter

Collet Location

Bit Shank Size

Specifications Met

Approximate Diameter Compression

1/64"

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35 Products

CAT Taper Collet Chucks

Hold collets tightly in CNC machines with CAT taper spindles for milling, drilling, and routing. Made from high-grade hardened steel, these chucks remain rigid and accurate while resisting wear—even at high speeds. The shank on these chucks is precision ground to the industry standard AT3 tolerance—or better—for a secure fit that minimizes runout in your machine spindle. To ensure compatibility across machines, these chucks meet ANSI/ASME standards for CAT spindles. Insert your collet and tighten the nut to clamp your tool in place. Internal threads on the shank let you attach a retention knob, so you can connect these chucks to your machine’s drawbar system.

All chucks can deliver coolant to your tool’s cutting edge to clear chips and extend tool life. If you have a machine that sends coolant through the spindle, pair them with an ER coolant control collet for the best results.

To maximize grip and minimize runout, choose a chuck where your tool diameter falls in the middle of the bit shank size range.

Chucks balanced to G 2.5 vibrate less than chucks balanced to G 6.3, so your collets, bits, and spindle will last longer. Chucks balanced to G 6.3 are a cost-effective option that is good for most machining tasks.

CAT 40 Machine Taper

Image of Product. Front orientation. Contains Annotated. Milling Machine Collet Chucks. CAT Taper Collet Chucks.

Collet Stop Screw—Chucks with a collet stop screw set the tool depth in the chuck for consistent, repeatable performance when you change tools.

RFID Chip Hole—Chucks with an RFID chip hole hold a small RFID tag for automatic tool identification and tracking.

	Milling Machine Collet Chucks										Wrenches		Replacement Nuts
	For Collet Type	For Bit Shank Size	Projection	Total Indicated Runout (TIR) Accuracy	Collet Nut Type	Coolant Delivery Type	Features	Specs. Met		Each		Each		Each
2.5 mm/s @ 20,000 rpm







				Hardened Chrome Alloy Steel

				TG-100	0.0469" to 1"	2.76"	0.0002"	Bearing Slotted Nut	Through Bore	Collet Stop Screw, RFID Chip Hole	ASME B5.50	32605A15	0000000	32605A95	000000	6163N116	000000


				TG-100	0.0469" to 1"	3.5"	0.0002"	Bearing Slotted Nut	Through Bore	Collet Stop Screw, RFID Chip Hole	ASME B5.50	32605A16	000000	32605A95	00000	6163N116	00000


				6.3 mm/s @ 30,000 rpm







								Hardened Nickel Chrome-Moly Steel

								TG-100	0.0469" to 1"	3"	0.0006"	Slotted Nut	Flange Entry, Through Bore	Collet Stop Screw, RFID Chip Hole	ASME B5.50	9493N54	000000	32605A95	00000	9531N12	00000

CAT 50 Machine Taper

Collet Stop Screw—Chucks with a collet stop screw set the tool depth in the chuck for consistent, repeatable performance when you change tools.

RFID Chip Hole—Chucks with an RFID chip hole hold a small RFID tag for automatic tool identification and tracking.

	Milling Machine Collet Chucks										Wrenches		Replacement Nuts
	For Collet Type	For Bit Shank Size	Projection	Total Indicated Runout (TIR) Accuracy	Collet Nut Type	Coolant Delivery Type	Features	Specs. Met		Each		Each		Each
6.3 mm/s @ 25,000 rpm







				Hardened Nickel Chrome-Moly Steel

				TG-100	0.0469" to 1"	3.5"	0.0006"	Slotted Nut	Flange Entry, Through Bore	Collet Stop Screw, RFID Chip Hole	ASME B5.50	9493N59	0000000	32605A95	000000	9531N12	000000


				TG-100	0.0469" to 1"	5.5"	0.0006"	Slotted Nut	Flange Entry, Through Bore	Collet Stop Screw, RFID Chip Hole	ASME B5.50	9493N61	000000	32605A95	00000	9531N12	00000

TG Collets

Clamp cutting tools in TG collet chucks for rough milling and drilling. These collets have a steep taper angle for a tighter, more stable grip than ER collets. This design gives them the strength to handle large tools and aggressive cuts. However, their grip range is smaller than ER collets, so you’ll need more collets to hold the same range of shank sizes. Use them in CNC machines and drill presses.

	ID Tolerance	Max. Body Dia.	Overall Lg.		Each
TG-100







	Hardened Steel

	1/8"	0.109" to 0.141"	0.0005"	-0.0004" to 0"	1.38"	2.38"	32605A141	000000


	3/16"	0.172" to 0.203"	0.0005"	-0.0004" to 0"	1.38"	2.38"	32605A142	00000
	1/4"	0.234" to 0.266"	0.0005"	-0.0004" to 0"	1.38"	2.38"	32605A143	00000
	5/16"	0.297" to 0.328"	0.0005"	-0.0004" to 0"	1.38"	2.38"	32605A144	00000
	3/8"	0.359" to 0.375"	0.0005"	-0.0004" to 0"	1.38"	2.38"	32605A122	00000
	7/16"	0.422" to 0.437"	0.0005"	-0.0004" to 0"	1.38"	2.38"	32605A123	00000
	1/2"	0.484" to 0.500"	0.0005"	-0.0004" to 0"	1.38"	2.38"	32605A124	00000
	9/16"	0.547" to 0.563"	0.0005"	-0.0004" to 0"	1.38"	2.38"	32605A125	00000
	5/8"	0.609" to 0.625"	0.0005"	-0.0004" to 0"	1.38"	2.38"	32605A126	00000
	3/4"	0.734" to 0.750"	0.0005"	-0.0004" to 0"	1.38"	2.38"	32605A127	00000
	7/8"	0.859" to 0.875"	0.0005"	-0.0004" to 0"	1.38"	2.38"	32605A128	00000


	1"	0.984" to 1.000"	0.0005"	-0.0004" to 0"	1.38"	2.38"	32605A129	00000
	20 mm	19.6 mm to 20 mm	0.0005"	-0.0004" to 0"	1.38"	2.38"	32605A131	00000

Deburring Tool Holders


	Fixed Spring Load	Adjustable Spring Load


For Front Side	For Back Side	Tool Holder Shown Compressing

Deburr using your CNC machine without complex programming. These holders grip your deburring tools and extend and retract along the shape of your part to smooth away burs—no overcutting. All you need to do is tell your CNC machine which direction to go. Use them with ball burs.

To mount these tool holders to your machine, you will need another rotary tool holder or a collet that accepts a 20 mm diameter shank. They should not be held by hydraulic chucks or shrink-fit holders. To install your bur, you'll need an ER-11 collet. Use the spanner wrench (sold separately) to tighten the tool holder nut around the collet.

These tool holders should not be used with cutting fluid; clear any fluid or debris off your workpiece before deburring.

Fixed Spring Load—Tool holders with a fixed spring load apply a consistent amount of force. They apply force by pushing down (compression) when working on the front of your part and pulling back (tension) when working on the back of your part, so you can deburr both sides with a single holder.

Adjustable Spring Load—Tool holders with an adjustable spring load have four levels of deburring force. They only apply force by pushing down (compression) on your part, so they can only deburr the front.

Light Spring Load—A light spring load has a delicate cutting action, applying about the same amount of pressure as your pinky finger. It is ideal for aluminum, plastics, and other soft materials.

Medium Spring Load—A medium spring load is best for moderate cutting action, applying about as much pressure as your index finger. Use it when deburring steel.

Heavy Spring Load—A heavy spring load is best for aggressive cutting—it gives about the same force as pressing down with your palm. Use it on stainless steel and other hard materials.

	Holders																		Spanner Wrenches
	Spring Load			Shank				Bur				Nut, mm
	Force, N	Rating	Overall Lg., mm	For Collet Type	For Collet Size, mm	Dia., mm	Lg., mm	For Collet Type	For Collet Size	For Shape	For Max. Shank Dia.	Dia.	Lg.	Compression Lg., mm	Extension Lg., mm	Material		Each		Each
Fixed Spring Load—For Front and Back Side



		3	Light	130 to 150	ER-32, ER-40, ER-50, TG-100	20	20	40	ER-11	1/4"	Ball	1/4"	16	12	10	10	Steel	8238N11	0000000	8238N15	000000


		5	Medium	130 to 150	ER-32, ER-40, ER-50, TG-100	20	20	40	ER-11	1/4"	Ball	1/4"	16	12	10	10	Steel	8238N12	000000	8238N15	00000
		7	Heavy	130 to 150	ER-32, ER-40, ER-50, TG-100	20	20	40	ER-11	1/4"	Ball	1/4"	16	12	10	10	Steel	8238N13	000000	8238N15	00000


		Adjustable Spring Load—For Front Side



				2.5, 4, 6.5, 8	Light, Medium, Heavy	145 to 155	ER-32, ER-40, ER-50, TG-100	20	20	45	ER-11	1/4"	Ball	1/4"	16	12	10	—	Steel	8238N14	000000	8238N15	00000

TG Collet Sets

Keep a set of TG collets on hand to clamp cutting tools for rough milling and drilling. These collets have a steep taper angle for a tighter, more stable grip than ER collets. This design gives them the strength to handle large tools and aggressive cuts. However, their grip range is smaller than ER collets, so you'll need more collets to hold the same range of shank sizes. Use them in CNC machines and drill presses.

	Approx. Dia. Compression	Max. Body Dia.	Overall Lg.		Each
TG-100 Collet







	Hardened Steel

	15	1/8"- 1" (increments of 1/16")	0.0005"	1/64"	1.38"	2.38"	9455N16	0000000


	24	3 mm to 26 mm (increments of 1 mm)	0.0005"	1/64"	1.38"	2.38"	9455N13	000000

100-TG Collet Stands

Store 100-TG collets upright and organized with these steel stands, keeping your most-used sizes accessible at the workbench. Each stand holds up to 27 collets and features a base with mounting holes for permanent fixture to a workbench or tool cabinet.

	Overall			Mounting Slot
For No. of Collets	Ht.	Wd.	Dp.	No. of	Wd.	Lg.	Material		Each
27	2"	9 1/8"	17"	2	1/4"	1 1/16"	Steel	8908A34	000000

R8 Taper Collet Chucks

Hold collets tightly in Bridgeport and other manual machines with R8 spindles to grip tools for milling, drilling, and routing. These chucks let you use the same ER or TG collets as other machines. This reduces the number of collets you need while also giving you a strong grip on your tools. Insert your collet and tighten the nut to clamp your tool in place. Internal threads on the shank let you connect them to your machine’s drawbar system.

To maximize grip and minimize runout, choose a chuck where your tool diameter falls in the middle of the bit shank size range.

Collet Stop Screw—Chucks with a collet stop screw set the tool depth in the chuck for consistent, repeatable performance when you change tools.

Milling Machine Collet Chucks									Wrenches		Replacement Nuts
For Collet Type	For Bit Shank Size	Projection	Total Indicated Runout (TIR) Accuracy	Material	Collet Nut Type	Features		Each		Each		Each



	TG-100	0.0469" to 1"	3.25"	0.0001"	Hardened Alloy Steel	Slotted Nut	Collet Stop Screw	9523N16	0000000	32605A95	000000	9531N12	000000

NMTB Taper Collet Chucks

Hold collets tightly in older CNC machines with NMTB taper spindles for milling, drilling, and routing. The shank on these chucks is precision ground to the industry standard AT3 tolerance—or better—for a secure fit that minimizes runout in your machine spindle. Internal threads in the shank connect to your machine's drawbar.

Insert your collet and tighten the nut to clamp your tool in place.

To maximize grip and minimize runout, choose a chuck where your tool diameter falls in the middle of the bit shank size range.

Collet Stop Screw—Chucks with a collet stop screw set the tool depth in the chuck for consistent, repeatable performance when you change tools.

	Milling Machine Collet Chucks											Wrenches		Replacement Nuts
	For Collet Type	For Bit Shank Size	Projection	Total Indicated Runout (TIR) Accuracy	Material	Collet Nut Type	Coolant Delivery Type	Features	Specs. Met		Each		Each		Each
NMTB 40 Machine Taper



		TG-100	0.0469" to 1"	3"	0.0001"	Hardened Alloy Steel	Slotted Nut	Through Bore	Collet Stop Screw	ASME B5.18	9514N16	0000000	32605A95	000000	9531N12	000000


		NMTB 50 Machine Taper



				TG-100	0.0469" to 1"	3.5"	0.0001"	Hardened Alloy Steel	Slotted Nut	Through Bore	Collet Stop Screw	ASME B5.18	9514N18	000000	32605A95	00000	9531N12	00000

TG Collet Nuts


Collet Nuts	Low-Friction Coated Collet Nuts	Ultra-Low-Friction Bearing Collet Nuts

Secure TG collets inside collet chucks and fixtures. Tightening these nuts squeezes the collet around the cutting tool, clamping it firmly in place.

Low Friction—Low-friction coated nuts tighten more smoothly than standard collet nuts for even clamping and longer tool life. Replace them when the coating wears away.

Ultra Low Friction—Ultra-low-friction bearing nuts are often used in the highest quality chucks. Instead of a coating that can wear away, these nuts have internal ball bearings for the smoothest and most uniform clamping. The result is a stronger grip, higher accuracy, and longer tool life compared to coated collet nuts. You can take them apart and clean them rather than replacing them.

	Nuts											Wrenches
			Drive
	For Collet Type	Thread Size	Style	Size, mm	Max. Rotation Speed, rpm	Dia.	Ht.	Recommended Tightening Torque, ft·lbf	Material		Each		Each
Collet Nuts



		TG-100	1 7/8"-12	Slotted	54	18,000	2.35"	1.18"	75	Hardened Steel	9531N15	000000	32605A95	000000


		Low-Friction Coated Collet Nuts



				TG-100	1 7/8"-12	Slotted	54	25,000	2.35"	1.18"	95	Hardened Steel	9531N18	00000	32605A95	00000


				Ultra-Low-Friction Bearing Collet Nuts



						TG-100	1 7/8"-12	Slotted	57	20,000	2.48"	1.18"	59	Hardened Steel	9531N12	00000	32605A95	00000

Straight-Shank Collet Chucks

Extend your tool holder’s reach or adapt it to fit different collet systems on manual and CNC lathes and machining centers. Made from hardened alloy steel, these chucks remain rigid and accurate while resisting wear—even at high speeds. Their shank is also precision ground for a secure fit that minimizes runout in your machine spindle. Insert your collet and tighten the nut to clamp your tool in place.

These chucks have a collet stop screw that sets the tool depth in the chuck for consistent, repeatable performance when you change tools. They’re also through-bore coolant-compatible, so they can route coolant through their center to clear chips, improve the finish of your workpiece, and extend the life of your tool. If you have a machine that sends coolant through the spindle, pair them with an ER coolant control collet for the best results.

To maximize grip and minimize runout, choose a chuck where your tool diameter falls in the middle of the bit shank size range.

Hardened Alloy Steel


Shown with Tool Holder and Cutting Bit (Not Included)	Assembly Shown in Use on Workpiece

For DA Collets

For TG Collets

For ER Collets

	Milling Machine Collet Chucks												Wrenches		Replacement Nuts
	For Collet Type	For Bit Shank Size	Shank Lg.	Projection	Overall Lg.	Collet Nut Dia.	Max. Body Dia.	Total Indicated Runout (TIR) Accuracy	Collet Nut Type	Features		Each		Each		Each
Through Bore Coolant Delivery







				1 1/2" Diameter Shank

				TG-100	0.0469" to 1"	6" (152 mm)	3"	9" (229 mm)	2.5" (63 mm)	1.89"	0.0001"	Slotted Nut	Collet Stop Screw	9535N45	0000000	32605A95	000000	9531N12	000000