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
UPC:
095456302396
Model 20N
Range 3/8 - 1"
Mount JT5
Key K5
$549.95
Current Stock:
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Jacobs Chuck

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



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WARNING: This Product Can Expose You To Materials And/Or Chemicals Which Are Known To The State Of California To Cause Cancer And/Or Reproductive Harm.

Jacobs Super Chuck Keyed Ball Bearing Drill Chuck 20N, 3/8 - 1" Range, JT5 Mount - 71-744-7

Jacobs Super Chuck Keyed Ball Bearing Drill Chuck 20N, 3/8 - 1" Range, JT5 Mount…

Jacobs Super Chuck Keyed Ball Bearing Drill Chuck 20N, 3/8 -…

$549.95