Ball Bearing Chucks, K4, 1/8 in-3/4 in Cap., Jacobs 4JT Female

1-piece fluted sleeve construction
Ball trust bearing reduces friction in chuck closing mechansim
Through-hardened sleeve teeth, nose, and keyholes for wear resistance
Maximizes gripping force and drilling accuracy
Treated to ensure thread life and high gripping surface hardness
Jaws center-ground for absolute straightness and alignment
For heavy-duty, close tolerance production drilling
For production drilling equipment, jig borers, milling machines, lathes, and radials

Quantity 1EA

Specifications

Bit/Blade Mounting Size [Max]=3/4 in
Bit/Blade Mounting Size [Min]=1/8 in
Capacity [Max]=3/4 in (mild steel)
Capacity [Min]=1/8 in (mild steel)
Chuck Size=3/4 in
Finish=Fluted Sleeve
Housing Diam=3 in
Key Size=K4
Mechanism=Ball Bearing
Mounting=Jacobs 4JT Female
Overall Length [Max]=5.12 in
Overall Length [Min]=3.95 in
Type=Keyed
Wt.=66 oz