JACOBS Drill Chuck: JT3, 3/16 in to 51/64 in Capacity
The JACOBS Drill Chuck, model JCM6309, is a taper-mount keyed drill chuck with a JT3 taper and a capacity range of 3/16 in to 51/64 in, operated by a K4 key. This industrial tool is designed for secure bit retention…
SKU 3G-OTH-251546
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Product Description
The JACOBS Drill Chuck, model JCM6309, is a taper-mount keyed drill chuck with a JT3 taper and a capacity range of 3/16 in to 51/64 in, operated by a K4 key. This industrial tool is designed for secure bit retention in drilling applications.
Frequently Asked Questions
What is the JACOBS JCM6309 drill chuck used for?
The JACOBS JCM6309 is a taper-mount keyed drill chuck used for secure bit retention in industrial drilling applications. Its JT3 taper and 3/16 in to 51/64 in capacity make it suitable for precision work in machining, metalworking, and assembly operations where reliable grip is critical.
What are the specifications of the JACOBS JCM6309 drill chuck?
The JACOBS JCM6309 is a taper-mount keyed drill chuck with a JT3 taper, capacity range of 3/16 in to 51/64 in, and uses a K4 key for tightening. The manufacturer part number is JCM6309. It is designed for industrial drilling applications requiring secure bit retention.
Where to buy the JACOBS JCM6309 drill chuck worldwide?
3G Electric supplies the JACOBS JCM6309 drill chuck worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this taper-mount keyed chuck to your facility. Contact us for pricing and lead time on this JACOBS model.
How to install a JACOBS JCM6309 taper-mount drill chuck?
To install the JACOBS JCM6309, clean the JT3 taper on both the chuck and spindle, then firmly press the chuck onto the spindle using a drill press arbor or soft-faced hammer. Ensure the K4 key is used to tighten the jaws around the bit. Always follow the manufacturer's instructions for safe operation.
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3G Electric supplies JACOBS taper-mount keyed drill chucks. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.













