{"product_id":"chuck-key-0-3-4mm","title":"Chuck key for the 0.3 to 4 mm chuck","description":"\u003cp\u003eThe key lives in a drawer, the drawer gets tidied, and the chuck is now a thing you cannot open. That is the whole reason this page exists.\u003c\/p\u003e\n\n\u003ch2\u003eWhich key this is\u003c\/h2\u003e\n\u003cp\u003eThe small one. Chuck keys come in sizes and they are not interchangeable: this pinion measures 11 mm across the teeth and the pilot spigot in the middle is 3 mm. That is the size that turns a 0.3 to 4 mm micro chuck, which is what is fitted to our press.\u003c\/p\u003e\n\u003cp\u003eA chuck key off a hardware-store drill will not work here. Those are built for a 10 or 13 mm chuck and the teeth are far too coarse to reach into this one.\u003c\/p\u003e\n\u003cp\u003eChrome vanadium steel, T-handle.\u003c\/p\u003e\n\n\u003ch2\u003eTwo things the maker tells us, and we pass on\u003c\/h2\u003e\n\u003cp\u003eThe handle length varies a little between production runs. It changes nothing about how the key works, but if you buy two they may not be identical twins.\u003c\/p\u003e\n\u003cp\u003eThis is the key on its own. No chuck comes with it. If you want the chuck as well, the four-piece set is on its own page.\u003c\/p\u003e\n\n\u003ch2\u003eWhat we have not checked\u003c\/h2\u003e\n\u003cp\u003eWe have not turned this key in our own chuck yet. The 11 mm and 3 mm figures come from the maker's drawing and they are the right numbers for a 0.3 to 4 mm chuck, but our sample machine is still in transit. It gets tried the day it lands.\u003c\/p\u003e\n\u003cp\u003eIf it does not fit yours, send a photo, keep it, and we refund you. You are not paying postage for our homework.\u003c\/p\u003e\n\n\u003ch2\u003eBefore you buy this\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eFor twelve months from your order, a replacement key is free.\u003c\/strong\u003e If yours fails or goes missing inside the first year, tell us and we post one, no charge and no postage. This page is for people past that year, or people who would rather have a spare in the drawer than wait for the post.\u003c\/p\u003e\n\n\u003ch2\u003eShipping and returns\u003c\/h2\u003e\n\u003cp\u003eFree shipping in the US, 5 to 15 business days. Returns accepted for 30 days from delivery. Return postage is on you, the price of the item comes back in full.\u003c\/p\u003e","brand":"ARVONELLE","offers":[{"title":"Default Title","offer_id":46227325288639,"sku":null,"price":5.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0760\/5826\/3743\/files\/S47f48dfb288f4a40b84c7c81c2e4665cp.jpeg_960x960q75.webp?v=1789691833","url":"https:\/\/arvonelle.com\/products\/chuck-key-0-3-4mm","provider":"ARVONELLE","version":"1.0","type":"link"}