Original USA MADE Jacobs 1/4" Plain Bearing Drill Chuck 1JT Mount 1A Windshield fitting tool 1/4" hole diameter

1/4" hole diameter

helping to eliminate squeezing action and general hand fatigue when manipulating

#3 drill has a 1/4″ shank

May be a little stiff due to decades of storage

They are only bored

Original USA MADE Jacobs 1/4" Plain Bearing Drill Chuck 1JT Mount 1A Windshield fitting tool 1/4" hole diameterOriginal USA MADE Jacobs 1 4" Plain Bearing Drill Chuck 1JT Mount 1A Made in USA. May be a little stiff due to decades of storage. Jaws Center Ground for Absolute 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 Each Chuck 100% Inspected for Performance and Precision T. I. R. . 004" Maximum