Yakamoz 0.6-6.5mm 1/40-1/4" Capacity Drill Chuck Adapter Converter with 1/4" Quick Change Hex Shank Impact Driver Conversion Tool

I had a project that required drilling a hole in steel with a 1/8" bit.I have a budget-level cordless drill that has plenty of torque but it's chuck could not hold the bit tight enough.So I asked myself this question: "Does someone make a chuck that is tightened with a key and is mounted on a 1/4" hex arbor?"The answer is YES!Arrived on time. Fit right into the drill. Held the bit tight. Project done.A complete bargain. It now sits in the bit box. The modern world is amazing. This chuck is one of the reasons why.

Great Chucks, I bought 2 and love them!

First one I ordered the screw threads were messed up. They sent a replacement. Second one seemed good till I tried drilling something. The bit wabbled. I thought I loaded the bit crooked. Nope, no matter what it looked like a mixer.Really who wants a chuck that needs a separate tool to tighten and release?I purchased the Makita version. $40 bucks and worth every penny. No matter what your using the Makita Chuck for, it's tight and straight. Only down side. It is heavy. But if that's a problem you can always use a drill. Hand tighten, hand loosen. Up to you!!

Es un accesorio de mucha utilidad para usarlo en le atornillador y de esa manera funciona la atornilladora como taladro para perforaciónes pequeños muy útil y bueno

I purchased this for my older Ryobi 14.4 V cordless keyless chuck drill. Upon first use, the mandrel simply lost threading and the chuck was useless, I mixed some JB Weld (JB Quick) epoxy and reinserted the mandrel and everything looks good to go, a bargain price.

adequate for light to medium applications

First look, the Chuck looks really good, as the fit'n'finsh seem very well done. But just rotating it by hand you can feel the uncleaned manufacturing grit on the inside. The Chuck locks up in around the middle of travel a lot (see third pick of partially open jaws... its locked up) reversing the direction for 1/4 turn will allow you to get the rest of the way (but that not suppose to happen)If you close the Chuck on a bit the Jaws don't align properly. My guess is that the Assembly/QualityCotrol is so bad I got jaws 1,3,3 instead of a full set 1,2,3 (see Picks 1,2)There is also a bad bur on all the chuck jaws. (see Pic 1)The is no way I can see to disassembly the chuck to Clean out and lubricate it.The Adapter seems fine, but its looking screw is cracked, and the Phillips '+' is off center a lot... (see picks 4,5)The Pictures all show a 1mm bit (.0355") and that's the smallest bit that the chuck (with the bad grind on the jaws can actually grab (NOT 0.6mm). While writhing this review I ran the Jaws closed to make sure the above sentence was correct, and (Pick 6) happen. One of the Jaws just fell out of the gear!!!I have not put the Chuck in the Adapter, nor have I run the thing to see its runout. I couldn't get that far.I have to say the is the first Amazon product that I've had break in my hand, while writing the review (never used or even tested). With the lost Jaw it is completely unusable so I will have to return it.Please note that the Box is generic "KEYTYPE DRILL CHUCK" and the brand 'Yakamoz' is a later added sticker. so this crap might be under other brands too.

I needed to use a #40 drill bit straight and accurately many times without breaking it. Using a hand drill won't do, so the only way is on a drill press, but those chucks are too large where they don't close tight enough to hold very small drill bits such as a #40. This little drill chuck satisfies that need and easily holds a #40 drill bit while attached to the large main chuck on the drill press with a hex 1/4" shank. Works perfectly!!

Buen material y diseño, lo recomiendo