Description
Jacobs Drill Chuck 3/16″–3/4″
This is a quality drill chuck from the well-known brand Jacobs, offering a bit-holding capacity from 3/16 inch up to 3/4 inch. It’s designed to hold straight-shank drill bits or other rotary tools within that size range and is a solid choice for a range of drilling and machining tasks – from light to moderately heavy work.
Key Features
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Capacity / Range: Accepts drill bit shanks from 3/16″ up to 3/4″ – so suitable for smaller bits up to larger shank bits for heavier drilling or material removal. This broad range gives flexibility for a variety of drilling jobs.
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Jaw-style chuck: Uses the standard jaw-clamping mechanism: jaws converge around the bit shank for a concentric, secure grip – essential for straight drilling and minimizing runout.
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Industrial-grade construction: As typical for Jacobs chucks, the internals – sleeve, nose, keyholes and jaws – are hardened and ground for durability and long service life. This ensures resistance to wear under repeated use.
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Compatibility with standard drill-press or machine tool mounts: The chuck can typically be fitted to spindles that accept the correct taper or mount (e.g. a Jacobs taper mount), allowing use on drill presses, milling machines, lathes (with appropriate arbor) or similar.










