Jacobs Super Chuck Keyed Ball Bearing Drill Chuck 20N, 3/8 - 1" Range, JT5 Mount - 71-744-7
Brand: Jacobs- SKU:
- 71-744-7
- ID:
- 86463
| Model | 20N |
| Range | 3/8 - 1" |
| Mount | JT5 |
| Key | K5 |
$549.95
Jacobs Super Chuck Keyed Ball Bearing Drill Chuck 20N, 3/8 - 1" Range, JT5 Mount
JT5, 3/8 to 1" Capacity, Tapered Mount Drill Chuck
Keyed, 3-21/32" Sleeve Diam, 4-1/4" Open Length
Catalog Number: 30239
Features:
- Specially engineered for heavy duty close tolerance production drilling.
- Ideal for use on jig borers, milling machines, lathes and radial drill presses.
- Ball bearing construction maximizes gripping force and drilling accuracy.
- Jaws are centerground for absolute straightness and alignment.
- All working components are hardened for maximum wear resistance
- 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.
- Ball bearings are designed to reduce friction in the tightening mechanism and provide a better grip on the drill. They are used for heavy-duty machining and require a key for tightening or loosening.
- Ball Bearing Construction Maximizes Gripping Force and Drilling Accuracy.
- Jaws Center-Ground for Straightness and Alignment.
- One-Piece Sleeve Eliminates Crack Between Driving Teeth Often Found in Other Designs.
- Through-Hardened Sleeve Teeth Plus Hardened Nose and Keyholes Provide Outstanding Wear Resistance.
- Fluted Sleeve Standard.
- Each Chuck 100% Inspected for Performance and Precision.
- T.I.R. 0.003" Maximum at Half Capacity.
Specifications:
| UPC | 095456302396 |
| Set | No |
| Maximum Capacity | 1.000 in |
| Minimum Capacity | 0.375 in |
| Mount | 5JT |
| Sleeve Outer Diameter | 3.65 in |
| Model Number | 20N |
| Manufacturer Part # | 30239 20N |
| Maximum Drill Chuck Capacity (mm) | 25.40 |
| Maximum Drill Chuck Capacity (Inch) | 1 |
| Maximum Drill Chuck Capacity (Decimal Inch) | 1.0000 |
| Minimum Drill Chuck Capacity (mm) | 9.53 |
| Minimum Drill Chuck Capacity (Inch) | 3/8 |
| Minimum Drill Chuck Capacity (Decimal Inch) | 0.3750 |
| Mount Type | Tapered Mount |
| Mounting Size | JT5 |
| Key Style | Keyed |
| Bearing Type | Ball Bearing |
| Material | Steel |
| Closed Length (mm) | 139.70 |
| Closed Length (Inch) | 5-1/2 |
| Open Length (mm) | 107.95 |
| Open Length (Inch) | 4-1/4 |
| Sleeve Diameter (mm) | 92.87 |
| Sleeve Diameter (Inch) | 3-21/32 |
| Key Number | K5 |
| TIR (Decimal Inch) | 0.0030 |
For more info, visit www.p65warnings.ca.gov.
