Jacobs T6C Drill Chuck Key K3C 5/16 in Pilot

Product Description

The JACOBS T6C is a drill chuck key designed to tighten and release drill chucks on stationary and handheld drilling equipment. The T6C features a K3C key number designation and a 5/16-inch pilot diameter, allowing it to seat securely into the chuck body for reliable torque transfer. Licensed electricians, maintenance technicians, machinists, and general tradespeople rely on chuck keys like this one to safely change bits without improvised tools. The correct pilot fit prevents slippage that can damage the chuck or cause injury during bit changes.

This chuck key is suited for use in shop environments, job-site drilling rigs, and light industrial settings wherever a compatible chuck requires a K3C key. It fits drill presses, corded drills, and similar keyed-chuck equipment. The compact size and standard geometry make it a straightforward replacement or spare for toolboxes and drill press stations alike.

Key Features

• K3C key number for positive identification and correct chuck fitment
• 5/16-inch pilot diameter for secure, slip-resistant engagement
• Compact form factor suited to stationary and portable drilling equipment
• Sold individually as a direct replacement or spare chuck key

Compatibility

Compatible with product number 34-33 C as stated by the manufacturer. Designed as an OEM-style replacement chuck key for keyed drill chucks requiring a K3C key configuration.

Installation Notes

Always disconnect or power down the drill or drill press before inserting or removing a chuck key. Insert the pilot fully into the chuck body hole before applying rotational force to ensure proper engagement. Do not use the chuck key as a lever extension or with a secondary tool - apply only hand torque. Replace any chuck key that shows signs of wear on the pilot or gear teeth to avoid chuck damage.