For Bit Shank Size For Bit Shank Size |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Shank Type Shank Type |
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Morse Taper | Round |
For Tap Size in Steel For Tap Size in Steel |
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Collets for Procunier Auto-Reversing Tap Holders


Use to attach taps to Procunier auto-reversing tap holders.
For Tap Size | Body Dia. | Material | Each | |
For Procunier No. 1-E | ||||
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No. 0, No. 1, No. 2, No. 3, No. 4, No. 5, No. 6 | 3/8" | Steel | 00000000 | 000000 |
No. 8 | 3/8" | Steel | 00000000 | 00000 |
No. 10 | 3/8" | Steel | 00000000 | 00000 |
No. 12 | 3/8" | Steel | 00000000 | 00000 |
1/4" | 3/8" | Steel | 00000000 | 00000 |
M2.5 | 3/8" | Steel | 00000000 | 00000 |
M3 | 3/8" | Steel | 00000000 | 00000 |
M4 | 3/8" | Steel | 00000000 | 00000 |
M4.5 | 3/8" | Steel | 00000000 | 00000 |
M5 | 3/8" | Steel | 00000000 | 00000 |
M6 | 3/8" | Steel | 00000000 | 00000 |
Parts for Procunier Auto-Reversing Tap Holders for Straight and Morse Taper Spindles
Procunier Auto-Reversing Tap Holders for Straight and Morse Taper Spindles

These instantly reversing tap holders allow you to back out of a hole once it has been tapped without stopping the machine's motor. They’re also known as tapping heads. Use them for fast, precise tapping on manually operated drill presses and milling machines. Collets (sold separately) are required to connect the tap to the holder.
Straight Shank

Straight Shank
Procunier Number | Shank Dia. | For Tap Size in Aluminum | For Tap Size in Steel | Max Speed, rpm | Material | Each | |
1-E | 1/2" | No. 0, No. 1, No. 2, No. 3, No. 4, No. 5, No. 6, No. 8, No. 10, No. 12, 1/8", 3/16", 7/32", 1/4", M2, M2.2, M2.5, M3, M3.5, M4, M4.5, M5, M6 | No. 0, No. 1, No. 2, No. 3, No. 4, No. 5, No. 6, No. 8, No.10, No.12, M2, M2.2, M2.5, M3, M3.5, M4, M4.5, M5 | 3,000 | Steel | 00000000 | 0000000 |
Morse Taper Shank

Morse Taper Shank
Procunier Number | Morse Taper Number | For Tap Size in Aluminum | For Tap Size in Steel | Max. Speed, rpm | Material | Each | |
1-E | 1 | No. 0, No. 1, No. 2, No. 3, No. 4, No. 5, No. 6, No. 8, No. 10, No. 12, 1/8", 3/16", 7/32", 1/4", M2, M2.2, M2.5, M3, M3.5, M4, M4.5, M5, M6 | No. 0, No. 1, No. 2, No. 3, No. 4, No. 5, No. 6, No. 8, No.10, No.12, M2, M2.2, M2.5, M3, M3.5, M4, M4.5, M5 | 3,000 | Steel | 00000000 | 0000000 |
1-E | 2 | No. 0, No. 1, No. 2, No. 3, No. 4, No. 5, No. 6, No. 8, No. 10, No. 12, 1/8", 3/16", 7/32", 1/4", M2, M2.2, M2.5, M3, M3.5, M4, M4.5, M5, M6 | No. 0, No. 1, No. 2, No. 3, No. 4, No. 5, No. 6, No. 8, No.10, No.12, M2, M2.2, M2.5, M3, M3.5, M4, M4.5, M5 | 3,000 | Steel | 00000000 | 000000 |