RDO | Precision Tools by Centaur Tools

Collapse per collet: 0.5 mm (0.019 in.)
Precision per DIN 6388B *Form A

	A		B
	mm.	in.	mm.	in.
RDO 16 RDO 20 RDO 25 RDO 35 RDO 44	14.5 20.0 25.5 35.3 44.0	0.57 0.78 1.00 1.39 1.73	26.0 34.0 40.0 52.0 60.0	1.03 1.33 1.57 2.05 2.36

RDO 16 COLLETS

INCH SIZES
(in.)	Part No.
1/8 3/16 1/4 5/16 3/8	413001 413002 413003 413004 413005

NOTE: Form A style

RDO 20 COLLETS

METRIC SIZES
(mm.)	Part No.
2 3 4 5 6 7 8 9 10 11 12 13	414102 414103 414104 414105 414106 414107 414108 414109 414110 414111 414112 414113

INCH SIZES
(in.)	Part No.
1/8 3/16 1/4 5/16 3/8 7/16 1/2	414001 414002 414003 414004 414005 414006 414007

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RDO 25 COLLETS

METRIC SIZES
(mm.)	Part No.
2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5 9	4150001 4150002 4150003 4150004 4150005 4150006 4150007 4150008 4150009 4150010 4150011 4150012 4150013 4150014 4150015

METRIC SIZES
(mm.)	Part No.
9.5 10 10.5 11 11.5 12 12.5 13 13.5 14 14.5 15 15.5 16	4150016 4150017 4150018 4150019 4150020 4150021 4150022 4150023 4150024 4150025 4150026 4150027 4150028 4150029

INCH SIZES
(in.)	Part No.
1/16 5/64 3/32 7/64 1/8 9/64 5/32 11/64 3/16 13/64 7/32 15/64 1/4 17/64 9/32 19/64 5/16 21/64 11/32	4151001 4151002 4151003 4151004 4151005 4151006 4151007 4151008 4151009 4151010 4151011 4151012 4151013 4151014 4151015 4151016 4151017 4151018 4151019

INCH SIZES
(in.)	Part No.
23/64 3/8 25/64 13/32 27/64 7/16 29/64 15/32 31/64 1/2 33/64 17/32 35/64 9/16 37/64 19/32 39/64 5/8	4151020 4151021 4151022 4151023 4151024 4151025 4151026 4151027 4151028 4151029 4151030 4151031 4151032 4151033 4151034 4151035 4151036 4151037

Part No.	No. of Pcs.	Range	Increment
4150030 4151038 4151110	29 36 9	2-16 mm. 1/16-5/8 in. 1/8-5/8 in.	0.5 mm. 1/64 in. 1/16 in.

NOTE: Sealed collets available for coolant-through applications

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RDO 35 COLLETS

METRIC SIZES
(mm.)	Part No.
2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 12.5 13 13.5	4620001 4620002 4620003 4620004 4620005 4620006 4620007 4620008 4620009 4620010 4620011 4620012 4620013 4620014 4620015 4620016 4620017 4620018 4620019 4620020 4620021 4620022 4620023 4620024

METRIC SIZES
(mm.)	Part No.
14 14.5 15 15.5 16 16.5 17 17.5 18 18.5 19 19.5 20 20.5 21 21.5 22 22.5 23 23.5 24 24.5 25	4620025 4620026 4620027 4620028 4620029 4620030 4620031 4620032 4620033 4620034 4620035 4620036 4620037 4620038 4620039 4620040 4620041 4620042 4620043 4620044 4620045 4620046 4620047

INCH SIZES
(in.)	Part No.
1/8 3/16 1/4 5/16 3/8 7/16 1/2 9/16 5/8 11/16 3/4 13/16 7/8 15/16 1	4621001 4621002 4621003 4621004 4621005 4621006 4621007 4621008 4621009 4621010 4621011 4621012 4621013 4621014 4621015

RDO 35 Collet Set

Part No.	No. of Pcs.	Range	Increment
4620048 4621016	47 15	2-25 mm. 1/8-1 in.	0.5 mm. 1/16 in.

NOTE: Sealed collets available for coolant-through applications

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RDO 44 COLLETS

METRIC SIZES
(mm.)	Part No.
4 4.5 5 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 12.5 13	4670001 4670002 4670003 4670004 4670005 4670006 4670007 4670008 4670009 4670010 4670011 4670012 4670013 4670014 4670015 4670016 4670017 4670018 4670019

METRIC SIZES
(mm.)	Part No.
13.5 14 14.5 15 15.5 16 16.5 17 17.5 18 18.5 19 19.5 20 20.5 21 21.5 22 22.5	4670020 4670021 4670022 4670023 4670024 4670025 4670026 4670027 4670028 4670029 4670030 4670031 4670032 4670033 4670034 4670035 4670036 4670037 4670038

INCH SIZES
(in.)	Part No.
23 23.5 24 24.5 25 25.5 26 26.5 27 27.5 28 28.5 29 29.5 30 30.5 31 31.5 32	4670039 4670040 4670041 4670042 4670043 4670044 4670045 4670046 4670047 4670048 4670049 4670050 4670051 4670052 4670053 4670054 4670055 4670056 4670057

INCH SIZES
(in.)	Part No.
1/8 3/16 1/4 5/16 3/8 7/16 1/2 9/16 5/8 11/16 3/4 13/16 7/8 15/16 1 1-1/16 1-1/8 1-3/16 1-1/4	4671001 4671002 4671003 4671004 4671005 4671006 4671007 4671008 4671009 4671010 4671011 4671012 4671013 4671014 4671015 4671016 4671017 4671018 4671019

RDO 44 Collet Set

Part No.	No. of Pcs.	Range	Increment
4670058 4671020	57 19	4-32 mm. 1/8-1-1/4 in.	0.5 mm. 1/16 in.

NOTE: Sealed collets available for coolant-through applications

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TC DIN RDO COLLET CHUCKS

Part No.	Description	A		D		Ret. Knob Threading No.	Nut	Wrench
		(mm.)	(in.)	(mm.)	(in.)
655224 655425 655426 655436 675447 655427 655437 675448	TC 40/RDO 25 TC 40/RDO 25 TC 40/RDO 35 TC 45/RDO 35 TC 50/RDO 35 TC 40/RDO 44 TC 45/RDO 44 TC 50/RDO 44	50 100 80 70 80 80 70 80	1.97 3.94 3.15 2.76 3.15 3.15 2.76 3.15	43 43 60 60 60 72 72 72	1.69 1.69 2.36 2.36 2.36 2.83 2.83 2.83	M16 M16 M16 M20 M24 M16 M20 M24	KM/RDO 25 KM/RDO 25 KM/RDO 35 KM/RDO 35 KM/RDO 35 KM/RDO 44 KM/RDO 44 KM/RDO 44	HSO 25 HSO 25 HSO 35 HSO 35 HSO 35 HSO 44 HSO 44 HSO 44

Wrenches are sold separately.

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BT RDO COLLET CHUCKS

Part No.	Description	A		D		Ret. Knob Threading No.	Nut	Wrench
		(mm.)	(in.)	(mm.)	(in.)
1635424 1635425 1655447 1635427 1655448	BT 40/RDO 25 BT 40/RDO 35 BT 50/RDO 35 BT 40/RDO 44 BT 50/RDO 44	60 80 90 90 100	2.36 3.15 3.54 3.54 3.94	43 60 60 72 72	1.69 2.36 2.36 2.83 2.83	M16 M16 M24 M16 M24	KM/RDO 25 KM/RDO 35 KM/RDO 35 KM/RDO 44 KM/RDO 44	HSO 25 HSO 35 HSO 35 HSO 44 HSO 44

Wrenches are sold separately.

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NMTB RDO COLLET CHUCKS

Part No.	Description	A		D		Ret. Knob Threading No.	Nut	Wrench
		(mm.)	(in.)	(mm.)	(in.)
2635425 2635426 2635427 2635428	NMT40/RDO 35 NMT50/RDO 35 NMT40/RDO 44 NMT50/RDO 44	80 80 80 80	3.15 3.15 3.15 3.15	60 60 72 72	2.36 2.36 2.83 2.83	5/8-11 1-8 5/8-11 1-8	KM/RDO 35 KM/RDO 35 KM/RDO 44 KM/RDO 44	HSO 35 HSO 35 HSO 44 HSO 44

Wrenches are sold separately.

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RDO CLAMPING NUTS (Ball-Bearing)

Part No.	Collet	A		B		C
		(mm.)	(in.)	(mm.)	(in.)
30320 30325 30335 30344	RDO 20 KM/RDO 25 KM/RDO 35 KM/RDO 44	35 43 60 72	1.38 1.69 2.36 2.83	20 24 30 34	0.79 0.94 1.18 1.33	M27 X 1.5 M33 X 1.5 M48 X 2.0 M68 X 2.5

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RDO WRENCH

Part No.	Type
22220 22225 22235 22244	HSO20 HSO25 HSO35 HSO44

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RDO MASTER TOOLING SETS

Part No.	Collet Type	Collets Per Set	Range	Chuck	Nut	Wrench
MSO46216 MSO46217 MSO46721 MSO46722	RDO 35 RDO 35 RDO 44 RDO 44	15 15 19 19	1/8 – 1 in 1/8 – 1 in 1/8 – 1 in 1/8 – 1 in	NMTB 40 NMTB 50 NMTB 40 NMTB 50	KM/RDO 35 KM/RDO 35 KM/RDO 44 KM/RDO 44	HSO 35 HSO 35 HSO 44 HSO 44

Complete precision milling system in fitted wooden box. Sets include collets, collet chuck and wrench.

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