Jacobs - JT3, 5 to 20.32mm Capacity, Tapered Mount Drill Chuck - Keyed, 64.52mm Sleeve Diam, 79.76mm Open Length
Item #: 08590275
Brand: Jacobs
Model #: JCM6309
Exact Tooling IR#: 04
Features and Benefits
Tapered mount drill chucks have an internal Jacobs Taper (JT) that is press-fit onto a corresponding JT arbor (shank) or spindle.
Keyed chucks are engineered to either loosen or tighten the hold on a tool by using a key. Keyed chucks offer the advantage of applying additional torque on the bit when slippage is a concern during heavy-duty applications.
Plain bearings are designed with a 1-piece gearing and sleeve for reducing teeth breakage. They are used for medium duty operations with stationary drilling, turning, milling and woodworking machines.
Steel is strong and durable but less corrosion resistant than stainless steel. To improve its resistance to corrosion, it may receive additional finishes and coatings.
| Product Specifications | |
|---|---|
| Maximum Drill Chuck Capacity (mm) | 20.32 |
| Maximum Drill Chuck Capacity (Decimal Inch) | 0.8000 |
| Minimum Drill Chuck Capacity (mm) | 5.00 |
| Minimum Drill Chuck Capacity (Decimal Inch) | 0.1800 |
| Mount Type | Tapered Mount |
| Mounting Size | JT3 |
| Key Style | Keyed |
| Bearing Type | Plain Bearing |
| Material | Steel |
| Closed Length (mm) | 103.12 |
| Closed Length (Decimal Inch) | 4.0600 |
| Open Length (mm) | 79.76 |
| Open Length (Decimal Inch) | 3.1400 |
| Sleeve Diameter (mm) | 64.52 |
| Sleeve Diameter (Decimal Inch) | 2.5400 |
| Key Number | K4 |
| TIR (Decimal Inch) | 0.0040 |
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