Resze Keyless Hand Drill Chuck,3-Jaw Drill Chuck,Self -Tightening Multipurpose 1/2"- 20UNF Mount 1.5-13mm Drill Press Adapter for Hand Drill Impact Driver Power Drill,1/4" Hex Shank

Why I added the Resze chuck to my kit

I keep a small box of adapters in the truck for those jobs where the tools I have aren’t quite the tools I need. That’s where the Resze keyless chuck earns its keep. It’s a compact, 1/2"-20 UNF, keyless 3-jaw chuck with a 1/4" hex shank adapter, designed to let an impact driver stand in as a drill, or to add a quick-change option to a drill press or hand drill. After several weeks of mixed use—wood framing, cabinet installs, and a couple of metal tasks—I have a solid feel for what it can (and can’t) do.

Build and design

Out of the box, the chuck feels sturdier than its price suggests. The outer sleeve knurling is grippy, and the ratcheting mechanism provides a clear, audible click as you tighten. The jaws are listed as carbide-tipped; whether carbide or simply well-hardened steel, they’re aggressive and show only superficial polishing after gripping both smooth-shank and hex-shank bits.

• Capacity: 1.5–13 mm (1/16"–1/2")
• Mount: 1/2"-20 UNF thread, plus 1/4" hex shank adapter
• Style: Keyless, self-tightening

The self-tightening action is important. Under forward torque, the chuck tends to tighten rather than loosen, which helps with larger spade or auger bits where vibration would otherwise creep a keyless chuck open.

Setup and compatibility

My sample included a 1/4" hex shank adapter threaded 1/2"-20 to accept the chuck. Installation is simple:

1. Thread the chuck fully onto the adapter by hand.
2. Open the jaws fully and snug the internal retaining screw (mine was left-hand thread).
3. Seat the adapter in your impact driver or quick-change chuck.

If you plan to reverse frequently or run the chuck hard in percussion mode, a tiny dab of blue threadlocker on the adapter threads is worth it. On a drill press or hand drill with a 1/2"-20 spindle, you can skip the adapter and thread the chuck directly.

In use with an impact driver

This is where the Resze chuck will see the most use for many folks. I ran it on an 18V brushless impact driver for:

• 1/8"–3/8" twist drilling in pine and poplar
• 1-1/4" spade bits in SPF studs
• 1/8" and 3/16" cobalt bits in mild steel angle

With small and mid-size twist bits, it held securely and didn’t creep under load. The ratcheting collar is tactile enough that I could confirm a proper lock with gloves on. The self-tightening behavior is noticeable: after a dozen holes in 2x material, the bit was tighter than when I started.

On an impact driver, runout is the limiting factor. Measured at the bit shank with a dial indicator and a 3" test rod, my sample showed roughly 0.006–0.010" TIR depending on how carefully I seated the bit. At no load/high speed you’ll see a bit “wobble” that looks worse than it drills. Under cutting pressure, the bit tracks straight enough for construction work. For pilot holes, cabinet hardware, pocket screws, and through-holes in framing, it’s perfectly serviceable. For precise dowel jigging, hinge mortises, or tiny pilot holes under 1/16", I’d switch to a dedicated drill with a tighter chuck.

The impact mechanism itself is worth mentioning. Percussive torque isn’t ideal for clean hole quality, especially in metal. I had the best results by turning off impact mode when the driver allowed it, or feathering the trigger to minimize hammering. With spade bits, hammering didn’t hurt much; with small metal bits, it’s better avoided.

On a drill press and corded drill

Threaded directly onto a 1/2"-20 spindle, the Resze chuck behaves more like a conventional keyless chuck. Runout improves slightly without the adapter stack-up. I used it for a series of 1/4" and 3/8" holes in aluminum plate and found it easy to tighten and release between bit swaps. It won’t match a premium precision chuck, but it’s more than fine for shop tasks where speed and convenience matter.

On a corded drill, it performed similarly: quick bit changes, secure grip, and no tendency to back off during heavier cuts.

Grip and bit security

The jaws bite well. I intentionally tried to induce slippage with a 3/8" twist bit in 2x material and a 1-1/4" spade in studs. Once the collar ratcheted down, neither slipped, and I didn’t have to “re-snug” mid-task. Very small bits (1/16") require careful centering: close the jaws until they just touch the bit, spin the bit with your fingers while lightly closing, then give the collar a firm two-hand tighten until it clicks. That routine consistently kept small bits from walking.

The collar requires a deliberate grip to break loose after a heavy session—expected for a self-tightening design. If you have limited hand strength, you may prefer a keyed chuck, but for most users, the tradeoff is worth it.

Accuracy and wobble

Runout is the question everyone has with budget keyless chucks and adapters. My takeaways:

• Expect visible wobble at high speed with no cutting pressure.
• Under load, the bit tracks acceptably for general-purpose drilling in wood and mild steel.
• Precision work (tight tolerances, small pilot holes, or deep holes in metal) is not this chuck’s sweet spot.
• The 1/4" hex adapter introduces the largest share of runout; threading the chuck directly to a 1/2"-20 spindle improves things.

If you need nearly zero runout for metal fabrication or fine woodworking, invest in a higher-precision chuck and skip the hex adapter. If you’re trying to make an impact driver do “drill-like” tasks on site, this is a practical solution.

Durability

After a few weeks, the mechanism still clicks positively and the jaws show minimal wear. The outer sleeve’s anodized finish scuffs quickly, but that’s cosmetic. I did get the internal retaining screw to loosen once while reversing a stuck bit at full torque on an impact driver. A dab of medium threadlocker fixed that and it hasn’t recurred.

A quick maintenance routine helps:
- Keep the jaw faces clean; blow out dust and chips.
- Wipe the threads on the adapter and chuck before assembly.
- Add a drop of light oil to the collar occasionally to maintain smooth action.

Limitations and tips

• Not for precision drilling or delicate bits. Use a dedicated drill for tight tolerance work.
• Use low to moderate speed on metal to reduce chatter and heat.
• If your driver allows, disable impact mode for cleaner holes and better bit life.
• For reverse operations or frequent direction changes, snug the internal screw and consider threadlocker on the adapter.
• Center very small bits carefully before final tightening.

Value

For the price, the Resze chuck provides a lot of utility. It turns an impact driver into a passable drill in a pinch and adds a quick, keyless option to a drill press or hand drill without fuss. You can spend more for better runout or heavier construction, but for most jobsite and homeowner tasks, the tradeoffs feel reasonable.

Recommendation

I recommend the Resze keyless chuck for anyone who wants to stretch the capability of an impact driver or add a convenient keyless option to a 1/2"-20 tool without spending much. It holds bits securely, is quick to use, and stands up to typical jobsite abuse. Just go in with the right expectations: it’s a versatile problem-solver, not a precision instrument. If your work demands tight tolerances and perfect runout, look to a higher-end chuck and skip the hex adapter. For everyday drilling, light metalwork, and on-the-spot versatility, this chuck earns its spot in the kit.