This axial bolt mount toolholder fits to lathes equipped with BOT turret with 90x66mm bolt grid. It holds tools with round shunk of ⌀ 2" (50.8mm) for ID turning and boring. Tools with other shunk ⌀ are possible to hold with reduction sleeves. Toolholder has 2 external coolant channels. CNCmarket.ca provides 12 months of warranty and free shipping within Canada.
The price is calculated on 02.14.2026
Featuring cutting-edge design, this BOT 66x90mm holder (SKU: SKT400-B4365PUT) ensures smooth operations and reliable compatibility across CNC systems. The CNC lathe boring bar tool holder is one of the most popular and in-demand types of holders. This tool holder is designed for securing any tool with a cylindrical shank, particularly and primarily boring bars used for internal machining of parts. The BOT-type holder is positioned on the turret edge, with the axis of the central hole parallel to the spindle rotation axis. The central hole diameter is 2" (50.8mm), and the height from the turret edge to the hole axis is 2.362" (60mm). Reducer sleeves can be used for tools with smaller diameters. This boring bar holder for tool turret is compatible with the following machine tool models: HYUNDAI KIA SKT400/400M SKT400C/400LC/LMC, equipped with a BOT-type turret featuring a 4-hole 66mm x 90mm bolt pattern. It is specifically designed to excel in performance-critical environments.
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