Tapping Systems

Tapping products from Centaur are designed with flexibility, ease-of-use and economy in mind. Precision engineered and manufactured to strict standards, Centaur tapping systems help assure accuracy and performance.

Single source convenience from Centaur.

No matter if you're doing today's synchronous feed tapping or traditional tension-compression, conventional or coolant-through; or the best patented* tapping collets in the industry, Centaur offers a solution to your tapping needs.

*patent pending

TAPER-SHANK TAP HOLDERS

STRAIGHT-SHANK TAP HOLDERS

RIGID TAP HOLDERS Part No. Description d D D1 L L1 MRT10000 MRT07501 MRT07502 MRT10001 MRT10002 MRT15003 MRT20004 MRT#0 / 1” MRT#1 / 3/4” MRT#2 / 3/4” MRT#1 / 1” MRT#2 / 1” MRT#3 / 1-1/2” MRT#4 / 2” 1.00 0.75 0.75 1.00 1.00 1.50 2.00 1.02 1.42 2.05 1.42 2.05 3.07 3.73 0.51 0.75 1.22 0.75 1.22 2.36 2.37 3.38 3.15 3.74 3.58 4.17 6.25 6.53 2.00 1.57 1.57 2.01 2.01 3.00 2.51
TENSION-COMPRESSION TAP HOLDERS Part No. Description d D D1 L L1 Compensation T C MTC07501 MTC10001 MTC10002 MTC15003 MTC#1 / 3/4” MTC#1 / 1” MTC#2 / 1” MTC#3 / 1-1/2” 0.75 1.00 1.00 1.50 1.42 1.42 2.16 3.07 0.75 0.75 1.22 2.36 3.15 3.58 4.49 6.50 1.57 2.01 2.01 3.00 0.30 0.30 0.49 0.79 0.30 0.30 0.49 0.79

TAP HOLDER SHANKS TAP HOLDER SHANKS

POSITIVE-DRIVE TAP ADAPTERS

• Fully interchangeable with Bilz and other popular tapping systems
• Engineered for smooth operation and easy release

TAP ADAPTER DIMENSIONS   A B CWE 0 CWE 1 CWE 2 CWE 3 CWE 4 0.87 1.18 1.89 2.75 3.62 0.51 0.75 1.22 1.89 2.36

NOTE: Metric, DIN and Japanese standard sizes upon special request.

TORQUE CONTROL TAP ADAPTERS

QUICK-CHANGE COOLANT-THROUGH TAP HOLDERS

Uses STANDARD TAP ADAPTERS for oilhole taps in blind hole applications.

Uses EXTERNAL COOLANT FLOW ADAPTERS for standard taps in blind and throughhole applications.

• For use on machines with coolant through the spindle • Rigid system for synchronous feed tapping • Improves chip removal and prolongs tool life

TAPER SHANKS

Part No. Description A B CTK4001 CTK4002 CTK5001 CTK5002 BTK4001 BTK4002 BTK5001 BTK5002 CAT40 / MRK#1 CAT40 / MRK#2 CAT50 / MRK#2 CAT50 / MRK#3 BT40 / MRK#1 BT40 / MRK#2 BT50 / MRK#2 BT50 / MRK#3 2.95 3.55 2.95 3.55 2.63 3.23 4.05 5.37 1.42 2.05 1.42 2.05 1.42 2.05 2.05 3.57

STRAIGHT-SHANK

Part No.	Description	d	D	D1	L	L1
MRK10001 MRK10002	MRK#1 / 1” MRK#2 / 1”	1.00 1.00	1.42 2.05	0.75 1.22	3.58 4.17	2.01 2.01

EXTERNAL COOLANT FLOW TAP ADAPTERS

Hand Tap Size Tap Shank Dia. Part No. CWEK 1 Part No. CWEK 2 0-6 8 10 12 1/4 5/16 3/8 7/16 1/2 9/16 5/8 11/16 3/4 13/16 7/8 0.141 0.168 0.194 0.220 0.255 0.318 0.381 0.323 0.367 0.429 0.480 0.542 0.590 0.652 0.697 107006K 107008K 107010K 107012K 107125 107312 107375 107437 107500 107562 207006 207008 207010 207012 207125 207312 207375 207437 207500 207562 207625 207687 207750 207812 207875 NOTE: For standard adapters, see page 4.

Pipe Tap Size Tap Shank Dia. Part No. CWEK 1 Part No. CWEK 2 1/8 - SS 1/8 - LS 1/4 3/8 1/2 0.313 0.437 0.562 0.700 0.687 175062 175063 275062 275063 275125 275375 275500

RD/ER RIGID TAPPING COLLETS WITH SQUARE DRIVE

• Collet bore is exactly tool diameter for accuracy and rigidity
• Permit synchronous tapping operations using any standard collet chuck
• Available sealed for coolant-through applications

NOTE: Metric, DIN and Japanese standard sizes on request.

Tap Size Range L1 L2 RTS 16 RTS 20 RTS 25 RTS 32 RTS 40 0-6 - 1/4 5/16 - 1/2 9/16 - 7/8 1” 0.709 0.866 0.984 1.102 0.374 0.531 0.374 0.630 0.472 0.374 0.866 0.709 0.591 1.102 0.945 0.827 0.709

Hand Tap Size Part No. By Collet Series RD 16 RD 20 RD 25 RD 32 RD 40 0-6 8 10 12 1/4 5/16 3/8 7/16 1/2 9/16 5/8 11/16 3/4 13/16 7/8 15/16 1 161-141 161-168 161-194 161-220 161-255 161-318 201-141 201-168 201-194 201-220 201-255 201-318 201-381 201-323 201-367 251-141 251-168 251-194 251-220 251-255 251-318 251-381 251-323 251-367 251-429 251-480 321-141 321-168 321-194 321-220 321-255 321-318 321-381 321-323 321-367 321-429 321-480 321-542 321-590 321-652 401-141 401-168 401-194 401-220 401-255 401-318 401-381 401-323 401-367 401-429 401-480 401-542 401-590 401-652 401-697 401-760 401-800 Pipe Tap Size Part No. By Collet Series RD 16 RD 20 RD 25 RD 32 RD 40 1/8 PIPE - SS 1/8 PIPE - LS 1/4 PIPE 3/8 PIPE 1/2 PIPE     251-313 251-437 321-313 321-437 321-562 401-313 401-437 401-562 401-700 401-687

RDG/TG RIGID TAPPING COLLETS WITH SQUARE DRIVE

• Collet bore is exactly tool diameter for accuracy and rigidity
• Permit synchronous tapping operations using any standard collet chuck
• Available sealed for coolant-through applications

NOTE: Metric, DIN and Japanese standard sizes on request.

Hand Tap Size Part No. By Collet Series RDG 75 RDG 100 RDG 150 0-6 8 10 12 1/4 5/16 3/8 7/16 1/2 9/16 52001 52002 52003 52004 52005 52007 52008 52009 52010 52011 72001 72002 72003 72004 72005 72007 72010 72008 72009 72011   5/8 52013 72013 92001 11/16 52014 72014   3/4 52015 72016 92002 13/16   72017   7/8   72019 92003 15/16   72021   1   72022 92004 1-1/8 1-1/4 1-3/8 1-1/2     92005 92006 92007 92008

Pipe Tap Size Part No. By Collet Series RDG 75 RDG 100 RDG 150 1/8 PIPE-SS 1/8 PIPE-LS 52006 52012 72006 72012   1/4 PIPE 52016 72015 92009 3/8 PIPE 1/2 PIPE   72020 72018 92010 92012 3/4 PIPE 1 PIPE 1-1/4 PIPE     92013 92014 92015

RDT AXIAL COMPENSATING TAPPING COLLETS

• RDT Tapping Collets permit tapping operations using standard RD/ER collet holders
• Quick-change tap removal with solid square drive. Allows tap replacement without removing the tap collet from the chuck, while maintaining consistent tap gage length
• Friction-free ball bearing drive with axial compensation. Helps deter tap breakage on machines with synchronous feed or machines requiring axial compensation

PATENT PENDING

NOTE: Metric, DIN and Japanese sizes available upon request.

BF ADAPTERS FOR RD/ER COLLETS

• Quick-change adapters are interchangeable with Bilz and other popular tapping systems
• Collets permit holding ANSI and metric sizes
• Can be used for tapping and drilling

Part No. Collet Series Tap Range B L D (mm.) (in.) (mm.) (in.) (mm.) (in.) BF0 1113 BF1 1619 BF2 2531 BF3 3248 BF3 4048* RD 11 RD 16 RD 25 RD 32 RD 40 0-6 - 1/4” 0-6 - 1/2” 0-6 - 3/4” 0-6 - 15/16” 0-6 - 1-1/8” 13 19 31 48 48 0.51 0.75 1.22 1.89 1.89 28 25 34 48 1.10 1.35 1.34 1.89 19 28 42 50 63 0.75 1.10 1.65 1.97 2.48 *NOTE: Available upon special request.

FLOATING TAP HOLDERS

• Permits tapping using RD/ER 16 collet system
• Ideally suited for applications on Swiss and Japanese automats and lathes

CDSPL ALL-PURPOSE TAPPING ATTACHMENT

For tapping operations on reversible drilling and tapping machines, lathes, mills, and others.

• Double chucking
• Safety chuck
• Radial parallel float
• Length compensation

PRODUCT FEATURES
The Centaur CDSPL provides a widerange, twin chucking head for the direct clamping of taps. There is no need for separate collets. An adjustable safety torque clutch helps prevent tap breakage. Radial parallel float compensates for misalignment between hole and tap. Length compensation on compression and tension compensates for the difference between machine feed and tap pitch.

Chucking. High concentricity, firm clamping, safe torque drive and large clamping range. CDSPL can accommodate standard square-ended taps. The tap is clamped by two adjustable sets of jaws. The four jaw set provides positive drive at the tap square. The three jaw set centers the tap perfectly. The two jaw sets move independently of one another, providing proper clamping despite any differential in the relation between the tap round shank and square.

Safety Torque Clutch. The safety clutch is infinitely variable to the required tap size torque by simply adjusting to scale. The safety clutch disengages when the preset torque is exceeded. After disengagement, there is virtually no torque on the tap, minimizing clutch wear. This prevents tool breakage. Blind holes can be bottom tapped under full rotation of the spindle. Reversing the spindle, the clutch re-engages and the tap is automatically withdrawn.

Radial Parallel Float. This ball-bearing float device guarantees threads to exact tolerance. It also protects misaligned taps against side thrust. It automatically centers after every tapping operation.

Length Compensation. Ball-cage length compensation provides smooth axial movement, even in the presence of maximum torque. This free axial movement prevents damage to thread flanks when the feed rate and tap pitch do not match. It also permits cutting small threads on heavy machines. The length compensation positions at zero point and is therefore also suitable for machine feed.

NOTE: CDSPL tapping attachment is suitable for right-hand threads only. For left-hand threads on request.

*NOTE: Uses CWE3 Adapters. See page 4.