Taytools 468310 Large Adjustable Trammel Head Set Beam Compass, Pencil Holders, Hardened Points

(685 Reviews)

Price
$13.79

Quantity
(10000 available )

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45 Ratings
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Reviews
  • Mr. Santos Johnson Sr.

    > 3 day

    Top notch trammels. Stout and sturdy.

  • J Dean

    > 3 day

    I have been making large shop drawings with trammel points for more than 50 years. These are the biggest, strongest, heaviest (cast iron), best designed trammel points that I have ever used. Designed for clamping on wood or metal bars of any length. They are built like a mack truck. Great for heavy hard use on large drawings, and job site layouts. Holds pencil firmly and in multiple directions. Unbelievable quality. Great price. All other trammels are toys by comparison.

  • Howard

    > 3 day

    100% all metal. No plastic Or rubber.

  • Joejoe

    > 3 day

    Was easy to put on board to draw the rounded arches I needed

  • J. Russo

    Greater than one week

    These make a solid beam compass as big or small as you want. Pencil fits in perfectly, and they have a good weight to them

  • David or Judy Wood

    Greater than one week

    At the price I was expecting a fairly cheap but adequate tool. The reality is that these are extremely well made precision tools that will last generations, assuming that the next generations still build anything. In any case the quality of these far exceeded my expectations. Sorry I could only go up to 5 stars.

  • Julian

    > 3 day

    I took some time in deciding which trammel points to buy, and these seemed the best quality for the price. Indeed they were! Very solidly built, easily accepts a pencil for marking if desired, and simple to adjust!

  • BLS

    > 3 day

    I am rating these in comparison to the Starrett Trammel set priced at $120. (I’m not being paid to do this.) Some pro drafters my see this review as blasphemy (haha), but this my honest truth. I ended up purchased both to compare! I’ll now be returning Starrett’s and keeping these. First off, there’s no question Starrett’s are more stunning and superior in detail… without question. However, Starrett’s would NOT fit any standers size drawing implants. This product DOES! It also fits a standard X-Acto blade handle, which now seems rather large in comparison to the ability of Starretts. All parts for this product are made from metal and feel very sturdy. A great value at just over $20. In some reviews the clamps only go down as far as to secure a 3/4” rod, however when I received mine they went as far down as just past the 1/4” mark… you can see in my product review image. Additionally, Starrett’s version of anchor point rods taper down and to the side of the rod, which make them uncentered. This is so users can offset the anchor points by twisting the rods while in place. Personally I don’t want to do this, as I don’t want to fuss with offsets ever time I draw or cut a circle. I made a few circles with this product and found them to be very precise. I’m very happy with this product and highly recommend. My only complaint and suggestion is wipe these down with a dry rag or paper towel as soon as you take them out of the box! They are covered in grease! Probably to keep them from erosion. This may be against the manufacture’s recommendation, but if you want to keep your hands and workspace clean from grease marks/ stains… do it! Great item.

  • Donald R

    10-06-2025

    This tool is heavy duty, not made of cheap plastic. I was impressed the moment I opened the box.

  • Ewell Dickens DDS

    > 3 day

    Very well made, strong and sturdy construction. Looks like plastic in the photo, but they are solid metal with quality parts.

These adjustable clamp on trammel heads are the perfect tool to measure, mark or scribe circles or arcs outside the range of those that could be produced with a standard compass. Unlimited arcs can be made using your custom-length shop-made beam. These heads will clamp onto any wood beam from 1/2 inch to 1-5/8 inch wide. Set comes with two trammel heads. Both points can be removed and will accept standard wooden pencils. Heads are made from tough cast zinc. The points are ground sharp and hardened to allow scribing on steel, sheet metal or aluminum. Overall length 6 inches.

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