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Collets for Auto-Reversing Tapping Heads
Secure taps in auto-reversing tapping heads with these collets. They hold inch and metric taps with shanks that meet ANSI standards.
Collets for Procunier tapping heads fit a single shank diameter.
For Procunier Tapping Heads

| For Tap Size, Inch | For Tap Size, Metric | For Shank Dia. | For Square Shank Size | Body Dia. | Overall Lg. | Material | Procunier Collet Series | Each | |
For Procunier No. 2-E | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| No. 0 to No. 6 | __ | 0.141" | 0.11" | 1/2" | 1 1/2" | Steel | 52000 | 2532A125 | 000000 |
| No. 8 | __ | 0.168" | 0.131" | 1/2" | 1 1/2" | Steel | 52000 | 2532A127 | 00000 |
| No. 10 | __ | 0.194" | 0.152" | 1/2" | 1 1/2" | Steel | 52000 | 2532A128 | 00000 |
| No. 12 | __ | 0.22" | 0.165" | 1/2" | 1 1/2" | Steel | 52000 | 2532A129 | 00000 |
| 1/4" | __ | 0.255" | 0.191" | 1/2" | 1 1/2" | Steel | 52000 | 2532A133 | 00000 |
| 5/16" | __ | 0.318" | 0.238" | 1/2" | 1 1/2" | Steel | 52000 | 2532A135 | 00000 |
| 3/8" | __ | 0.381" | 0.286" | 1/2" | 1 1/2" | Steel | 52000 | 2532A136 | 00000 |
| 7/16" | __ | 0.323" | 0.242" | 1/2" | 1 1/2" | Steel | 52000 | 2532A524 | 00000 |
| 1/2" | __ | 0.367" | 0.275" | 1/2" | 1 1/2" | Steel | 52000 | 2532A137 | 00000 |
| __ | M4 | 0.158" | 0.118" | 1/2" | 1 1/2" | Steel | 52000 | 2532A517 | 00000 |
| __ | M4.5 | 0.177" | 0.134" | 1/2" | 1 1/2" | Steel | 52000 | 2532A518 | 00000 |
| __ | M5 | 0.197" | 0.15" | 1/2" | 1 1/2" | Steel | 52000 | 2532A519 | 00000 |
| __ | M6 | 0.236" | 0.193" | 1/2" | 1 1/2" | Steel | 52000 | 2532A521 | 00000 |
| __ | M7 | 0.276" | 0.217" | 1/2" | 1 1/2" | Steel | 52000 | 2532A522 | 00000 |
| __ | M8 | 0.315" | 0.244" | 1/2" | 1 1/2" | Steel | 52000 | 2532A523 | 00000 |

























