Hand Tools

Snap-on TMS70A vs Blue-Point BLPSD14: Which Quarter-Inch Spinner Is Worth It?

Two quarter-inch spinner adapters that look nearly identical but perform very differently. Here is where each one earns its place in the tool box.

Two quarter-inch spinner adapters with knurled edges on a concrete workbench

Introduction

Quarter-inch ratchets are the kind of tool you never regret owning, and the accessories you pair with them matter more than most people expect. One of the most useful of those accessories is the spinner: a small knurled disc that mounts over the ratchet head so you can zip fasteners on or off with your fingertips before switching to ratcheting action.

Two options in this space are the Snap-on TMS70A and the Blue-Point BLPSD14. They are both quarter-inch spinners from the same tool truck family, they look similar in pictures, and they sell at very different prices, roughly $24.20 for the Snap-on and $10.10 for the Blue-Point. After spending real hands-on time with both, the differences turn out to be bigger than they first appear.

What a Spinner Actually Does

A spinner is not about working in tight spaces. In fact, it adds a bit of height over the ratchet head. You use it for the opposite situation: taking up a lot of thread quickly. If you have half an inch of thread to work through and you are ratcheting in tiny tenth-of-a-circle strokes, a spinner lets you spin the fastener in fast, full handfuls until you actually need ratchet leverage.

Quarter-inch spinner adapter mounted on a ratchet with a socket beside it on a workbench

It also has a second trick. Slip the spinner over an extension and it gives you a knurled grip point for starting threads or working in awkward positions, replacing big sweeping motions with small controlled twists. With a good spinner you can cover a full circle in about three hand movements instead of ten ratchet strokes.

The Snap-on TMS70A

The TMS70A has a distinct profile with heavier knurling around its edge, a bit like the ridged rim of a quarter coin. At first glance that looks like a styling choice, but it changes how the tool behaves in hand.

The key advantage is a small gap between the spinner disc and the ratchet head. That gap means you can grab both sides of the knurled disc with your fingers. On the Blue-Point, the disc sits nearly flush against the head, so you can only grip one side, effectively using half the knurling. Because the disc is about the same size as the ratchet head itself, your skin also rubs against the ratchet when you pinch, which costs you grip. The Snap-on disc gives a much more solid, confident feel when twisting it by hand, and it pops off the ratchet head far more easily when you want to remove it.

Close-up of knurled steel spinner discs showing different edge profiles

The Blue-Point BLPSD14

The BLPSD14 costs less than half the price, and for that money it is a legitimate tool. It is unmarked, but it is genuinely Blue-Point, and it does the basic spinner job: mount it, spin fasteners, take up thread.

Where it struggles is clearance. Because the disc sits flush against the ratchet head, it works best on ratchets with larger heads where there is still some room to grip. On compact modern ratchet heads, the same size as the disc itself, it becomes noticeably harder to use and harder to pry back off.

Spinner disc fitted on a compact ratchet head with a visible gap for easy removal

The practical conclusion from hands-on use: the Blue-Point finds its natural home on older ratchets with larger heads, such as an old-school 36-tooth design, where the extra room makes it comfortable.

Fit and Removal

The gap between disc and head is the detail Snap-on does not even publish in its dimension drawings, yet it is the difference between the two. On the TMS70A, the disc lifts off with a flick. On the BLPSD14, flush against the head, you have to wedge it off. It is not difficult, just slower, and it happens every time you swap between ratchets.

Open mechanic's tool box drawer with ratchets and accessories neatly arranged

Which One Should You Buy?

If you plan to use a spinner on smaller, compact ratchet heads, which is where most people actually reach for one, the Snap-on TMS70A is clearly the better performer. The extra grip, the two-sided pinch, and the easy removal justify the price gap for regular use.

If your spinner will mostly live on an older ratchet with a larger head and you want to spend as little as possible, the Blue-Point BLPSD14 at around $10 does the job. There may also be aftermarket spinners from other brands that offer the same clearance advantage, so it is worth checking before paying the Snap-on price.

Conclusion

These two spinners look interchangeable and behave very differently. The Snap-on TMS70A is the stronger tool thanks to better knurling, a grip-friendly gap, and easy removal. The Blue-Point BLPSD14 is a budget-friendly option best suited to larger-headed ratchets. Match the tool to your ratchet collection and either one can earn its spot in the drawer.

Product link

View more details for Snap-on TMS70A

This product is mentioned in the review. Check the specifications, options, and compatibility before buying.

View more details for Snap-on TMS70A

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