1. Tapered mount drill chucks have an internal Jacobs Taper (JT) that is press-fit onto a corresponding JT arbor (shank) or spindle
2. Tightens with a chuck key for excellent grip
3. Can be used in either the headstock or tailstock
4. The standard for accuracy and durability on all types of industrial power and machine tools
5. Fully hardened and ground working components offer exceptionally high accuracy and gripping power
| Type | Clamping Range | Taper | D mm |
Closed Length L1 |
Open Length L |
L1 | Key Number | N.W./G.W. | Meas |
| 5/8″JT3 | 1/32″-5/8″ | JT3 (Ф20.599) |
2.24 | 3.08 | 3.66 | 1.38 | K5 | 1.9/2.1 | 2.5×3×4.4 in |
| 1/2″JT33 | 1/32″-1/2″ | JT33 (Ф15.85) |
2.09 | 2.72 | 3.39 | 1.14 | K5 | 1.5/1.66 | 2.5×3×4.4 in |
| 5/8″JT33 | 1/32″-5/8″ | JT33 (Ф15.85) |
2.244 | 3.071 | 3.661 | 1.14 | K5 | 1.9/2.1 | 2.5×3×4.4 in |
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