{"product_id":"industrial-ca4004-6-back-countersinks-3-8-100-x-3-16","title":"Industrial CA4004-6 Back Countersinks 3 8-100 x 3 16","description":"\u003cdiv\u003e\u003cp\u003eCA4004-6 Industrial Back Countersink (California Aircraft Tool) delivers a precise 100° back-counterbore countersink with a 3\/8\" body diameter and a 3\/16\" pilot. Designed for back-side countersinking in restricted-access areas, it enables flush-head rivets and clean countersunk pockets on aerospace sheet metal. The 3\/8\" diameter and 100° angle produce the standard back-counterbore geometry used in aviation tooling, while the 3\/16\" pilot aligns with common hole sizes for rivet applications. This countersink is intended for use in aerospace maintenance and fabrication tasks where access from the opposite side is limited and a consistent countersink depth is required. \u003c\/p\u003e\u003c\/div\u003e","brand":"California","offers":[{"title":"New","offer_id":51677605331246,"sku":null,"price":25.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_306da094-63fb-4bb3-8647-f8fd12426b0f.jpg?v=1769565313","url":"https:\/\/plgautomation.com\/products\/industrial-ca4004-6-back-countersinks-3-8-100-x-3-16","provider":"PLG Automation ","version":"1.0","type":"link"}