{"id":33193,"date":"2019-03-21T05:00:13","date_gmt":"2019-03-21T12:00:13","guid":{"rendered":"http:\/\/kk.org\/cooltools\/?p=33193"},"modified":"2019-03-08T14:49:50","modified_gmt":"2019-03-08T21:49:50","slug":"blind-hole-spotter-set","status":"publish","type":"post","link":"https:\/\/tkdev.kk.org\/cooltools\/blind-hole-spotter-set\/","title":{"rendered":"Blind Hole Spotter Set"},"content":{"rendered":"<p>I&#8217;m an amateur maker-of-things\u00a0&#8212; metal, mostly, but some wood and plastic stuff, too. I am pretty terrible at measuring things accurately, especially with metal, when reproduction of patterns down to a few thousandths of an inch is important. Because of this lack of skill, I rely heavily on computerized generation of patterns (using CNC tools) or&#8230; I cheat.<\/p>\n<p>One of my favorite ways to cheat are <a href=\"http:\/\/www.amazon.com\/exec\/obidos\/ASIN\/B01LVZ154W\/cooltools-20\">blind hole spotters<\/a>. I am a big believer in using existing patterns to make other patterns, and a number of years ago I was introduced to this way of copying holes in materials much easier. Blind hole spotters are little slugs of metal that come in a variety of diameters in a set. The pin part fits snugly in an existing drill hole and stops without going all the way through because of a ring near the &#8220;top&#8221; of the pin, and there is a sharp pointy bit that then protrudes above the surface of the piece you&#8217;re reproducing. Place the blank material on top of these sharp pointy spikes, and then give a firm tap with a hammer. This results in a blank with tiny marks perfectly centered where you need to drill new holes. This is really useful on a car, a cabinet, or some other heavy\/fixed piece of stuff that is hard to easily measure. Reasonably cheap, lasts a lifetime, and makes me smug every time I use them to save huge amounts of time and frustration &#8211; what else can you ask of a tool?<\/p>\n<div class='ctx-module-container ctx_default_placement ctx-clearfix'><\/div><span class=\"ctx-article-root\"><!-- --><\/span>","protected":false},"excerpt":{"rendered":"<p>Accurately transfer hole patterns to wood, metal, or plastic<\/p>\n","protected":false},"author":76,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false},"categories":[41],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/tkdev.kk.org\/cooltools\/wp-json\/wp\/v2\/posts\/33193"}],"collection":[{"href":"https:\/\/tkdev.kk.org\/cooltools\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tkdev.kk.org\/cooltools\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tkdev.kk.org\/cooltools\/wp-json\/wp\/v2\/users\/76"}],"replies":[{"embeddable":true,"href":"https:\/\/tkdev.kk.org\/cooltools\/wp-json\/wp\/v2\/comments?post=33193"}],"version-history":[{"count":1,"href":"https:\/\/tkdev.kk.org\/cooltools\/wp-json\/wp\/v2\/posts\/33193\/revisions"}],"predecessor-version":[{"id":33195,"href":"https:\/\/tkdev.kk.org\/cooltools\/wp-json\/wp\/v2\/posts\/33193\/revisions\/33195"}],"wp:attachment":[{"href":"https:\/\/tkdev.kk.org\/cooltools\/wp-json\/wp\/v2\/media?parent=33193"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tkdev.kk.org\/cooltools\/wp-json\/wp\/v2\/categories?post=33193"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tkdev.kk.org\/cooltools\/wp-json\/wp\/v2\/tags?post=33193"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}