Backhand tool holder: Anti-interference in deep hole machining

Release date:

2025-12-03

The pullback toolholder solves the problems of loosening and precision issues in traditional toolholders with its mechanical anti-loosening structure and ultra-precision manufacturing, making it particularly suitable for deep cavity machining and high-speed precision milling.

Backhand tool holder: Anti-interference in deep hole machining

The pullback toolholder secures the tool through a linkage structure of a pullback collet and a pullback screw: one end of the collet is designed with an outwardly flared bevel; when the pull rod is pulled back, the collet is drawn into the tapered hole of the toolholder, and the pressure from the bevel causes the collet to contract and clamp the tool. A rectangular protrusion on the side of the collet engages with a concave slide inside the toolholder to restrict the collet's rotation; a positioning bolt further passes through the positioning hole of the collet, providing double fixation to prevent loosening caused by machining vibrations.

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Stainless steel CNC tool holders have been widely used in high-end manufacturing fields such as precision molds, automotive parts, and aerospace components. They are compatible with various mainstream CNC machine tools, providing impetus for the high-quality development of the industry.

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Thanks to their inherent characteristics of ultra-high precision, excellent dynamic balance, and exceptional rigidity, heat-shrink tool holders perfectly meet the demands of modern high-precision, high-efficiency, and high-speed machining.

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How to choose CNC tool holders for small CNC machine tools?

Both BBT and HSK have double-sided grips, but which one is better?

There is no absolute "superiority" or "inferiority" between BBT and HSK as double-sided toolholders; the key is to match the machining requirements—choose HSK for high speed and high precision, and BBT for heavy-duty and stable cutting.