▸ Key Features:
• Ball bearing construction for maximum gripping force and accuracy
• 3/8″ to 1″ capacity accommodates a wide range of drill sizes
• JT5 taper mount for secure installation in industrial equipment
• Center-ground jaws provide precise alignment and straightness
• Hardened sleeve teeth, nose, and keyholes for extended wear resistance
• Designed for heavy-duty, close tolerance production drilling applications
▸ Applications:
• Production drilling machinery
• Milling machines and machining centers
• Jig borers and radial drills
• Lathes and industrial fabrication equipment
• Maintenance and machine shop operations
▸ Alternative Model Numbers:
30239D
20N
Jacobs Super Chuck 20N
JCM30239
30239 Drill Chuck
▸ Common Misspellings or Phrasing:
Jacobs 30239 chuck
Jacobs 20N drill chuck
Jacobs super chuck JT5
Jacob drill chuck 30239
30239 superchuck