Accessories

great product
shopped all the local stores trying to find a chuck attachment that met my needs. this chuck is great and so easy to remove and add and is solid.

Keyless vs Keyed (jacob's) Chuck
Having used both keyed and keyless chucks for many years I can tell you from my experience that an old-fashion Jacob's (keyed) chuck is the most secure. The main drawbacks are: a)Time lost changing bits, b)Keeping the chuck key handy. A GOOD quality keyless chuck will do a descent job of gripping the bit and eliminates the need for a key (Makita makes one). 1/4" hex-shank bits are great for rapid change and will not spin out in any chuck (and eliminate the need for a chuck in a tool (like an impact driver drill) equipped with a quick change collar. The obvious drawback to hex-shank bits is that they will not fit securely in a drill bit sharpener and must be dressed manually (which requires skill, practice and a knowledge of bit dynamics) or replaced (costly & wasteful). I hope potential buyers find this information useful. My 3 star rating is not a reflection on the quality of the product but addresses the convenience enjoyed by using a keyless chuck.

Exactly what I needed.
I originally bought this with the intention of giving my Yankee-style spiral ratcheting screwdrivers a drilling option. It works okay with my original Yankee from '50s (it's a touch wobbly) but it works great with my modern Schroeder spiral ratcheting driver, which has much tighter, more stable action (Schroeder FYI, is a German precision parts company).

Now it also gets used with my Milwaukee 12-volt sub-compact driver/drill so I can use higher quality drill bits with a wider variety of sizes which makes a world of difference and vastly expands the role of this amazing little power tool.

The keyed chuck and light weight make it a lot more practical of an option than the heavy Makita 1/2" keyless version that relies on drilling at high speeds for a few seconds to lock the bit in. This made it hard to get the bits secure in the Makita with a relatively low-RPM driver, which struck me as kind of a dumb oversight on Makita's part. The Makita was also a bit top-heavy to work well with the Yankees even it did keep the bits secure after using a faster drill to secure the bit.

I still don't get the big deal with keyless chucks. Too many of them don't work very well and I don't want to risk an expensive bit on a loose chuck.

Anyway, Milwaukee couldn't have built a better adapter for my needs and it was well worth ~20 bucks.

Pricey, but excellent quality
Well made, solid, comes with a key so don't need to buy another one from Amazon. I bought it to convert my electric screwdriver to a drill for small bit sizes, works well.

chuck key comes with chuck
just to let you know the chuck comes with a chuck key. it is not listed anywhere and Amazon tries to sell you one for $2.15. i almost bit but the shipping was going to be over $6 on a $2 item. i was pleased when i opened the box.