Mill owners running an R8 spindle who need a precision collet at a specific 3/8 inch capacity.
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Buyers wanting a large review sample to confirm consistency should be cautious, since this listing has only 23 reviews.
Our scorecard
4.3/5overall
Owner rating4.9/5
4.9 average across 23 owner ratings
Popularity0.6/5
23 owner reviews, fewer than most models here
The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other hand tools and workshop hand tools we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.
Overview
Shars markets this as a 3/8 inch precision R8 collet with a listed TIR (total indicator runout) of 0.0006 inch, priced at $16.25 for R8 spindle mills.
The 4.9 star rating is the highest in this batch of collets and punches, but it rests on only 23 reviews, and no material or weight spec is listed beyond the TIR figure in the title.
For an R8 mill owner who needs the stated 3/8 inch capacity and values the listed TIR spec, this is a reasonable option. The small review count means it is worth treating the rating as an early signal rather than a long proven track record.
Pros
Listed TIR of 0.0006 inch, a real precision spec buyers can compare directly
4.9 star average, the highest rating in this batch
Fits a specific 3/8 inch capacity for R8 spindles
Cons
Only 23 reviews support the 4.9 star average, a small sample
No material or weight spec is listed beyond the TIR figure in the title
No bought in the past month figure is shown for this listing
Performance notes
The 0.0006 inch TIR spec suggests this collet was built with precision in mind. The 4.9 star average is strong but drawn from a small pool of 23 reviews, so read it as an early signal rather than a proven track record.
What buyers say
Early buyers rate it very highly at 4.9 stars, though the small review count of 23 means the sample is limited.
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