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The HORN BU105075001 is a boring and grooving bar holder designed for precision turning and grooving operations on CNC lathes and machining centers. With a 0.75 inch outside diameter and an overall length of 3.54 inches, this holder accepts grooving and boring bars in the BU105 series. Through-coolant capability delivers cutting fluid directly to the tool tip, improving chip evacuation and extending insert life during deep-groove and boring passes. Machinists and toolroom technicians working in production or job-shop environments will find this holder suitable for both light and moderate metal-removal applications.
This bar holder is intended for use in boring and grooving setups where coolant delivery to the cutting zone is required. It fits standard tool holding systems that accept 0.75 inch OD boring bars, making it applicable across a range of CNC lathe configurations. Through-coolant support makes it well suited for operations involving deep slots, internal profiles, or interrupted cuts where heat buildup and chip packing are concerns.
Designed as an OEM-style holder for use with BU105 series boring and grooving bars in systems that accept 0.75 inch OD bar holders with through-coolant capability.
Installation is performed by qualified machinists or toolroom technicians. Shut down and lock out the machine spindle before mounting or removing bar holders. Verify that the coolant port on the holder aligns with the machine tool interface before tightening. Follow machine tool manufacturer torque guidelines for all clamping hardware.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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