SLADE Keyless Drill Chuck 1/2-20UNF 1.5–13mm Hex SDS Adapter

Convert Any Impact Driver into a Versatile Drill — Instantly

The SLADE Professional Keyless Drill Chuck (Model GZ166) is the heavy-duty adapter you need to unlock the full potential of your impact driver or electric hammer. With a 1/2-20UNF mount and compatibility with Hex Shank, SDS-Plus, and Square Female adapters, this chuck bridges the gap between your power tool and any round-shank drill or driver bit — no special keys, no fuss.

Made in Mainland China.

Key Features

• Keyless, Finger-Tight Design — Swap bits in seconds with no chuck key required. Spend less time setting up and more time working.
• 3-Jaw Clamping System — Securely grips round-shank drill bits from 1.5 mm to 13 mm with exceptional holding force, eliminating bit slippage mid-task.
• Heavy-Duty Metal Construction — Built from professional-grade metal for long-lasting durability on job sites and in workshops.
• Universal Quick-Change Adapter — Compatible with SDS-Plus, Hex Shank, and Square Female drive configurations, making it suitable for a wide range of electric hammers and impact drivers.
• Greater Clamping Force — The reinforced 3-jaw mechanism applies more even, powerful grip pressure than standard chucks, giving you reliable, wobble-free drilling.
• Mount: 1/2-20UNF — Industry-standard thread for broad tool compatibility.

Specifications

Who Is This For?

Whether you're a professional tradesperson, a weekend DIY enthusiast, or a contractor working on demanding job sites, the SLADE Keyless Drill Chuck gives you the flexibility to use standard drill bits with your impact driver or rotary hammer — without buying an extra dedicated drill. It's a smart, cost-effective addition to any toolkit.

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Safety & Tool Standards

For guidance on safe power tool use and workshop safety practices, refer to the OSHA Power Tools Safety Guidelines. Always follow your tool manufacturer's instructions and wear appropriate personal protective equipment (PPE) when operating drills and rotary hammers.

Learn more: Chuck (engineering)

Frequently Asked Questions

Q: What drill bit sizes does this keyless chuck accommodate?

A: The SLADE GZ166 keyless drill chuck accepts round-shank drill bits ranging from 1.5 mm to 13 mm in diameter, covering the vast majority of standard drill bits used in both home and professional settings.

Q: What adapter types are compatible with this chuck?

A: This chuck is designed to work with Hex Shank, SDS-Plus, and Socket Square Female adapters, making it compatible with most impact drivers and electric rotary hammers on the market. The mount thread is the industry-standard 1/2-20UNF.

Q: Do I need a chuck key to tighten this drill chuck?

A: No — this is a keyless drill chuck. Simply finger-tighten the collar to secure your drill bit. This makes bit changes fast, easy, and tool-free, even while wearing work gloves.

Q: Will this chuck prevent drill bit slippage during heavy-duty use?

A: Yes. The 3-jaw clamping design distributes grip force evenly around the bit, providing greater clamping pressure than single or dual-jaw designs. This minimizes slippage and bit wobble even under demanding drilling conditions.