BT SLN High Precision End Mill Holder, apply to the holder of a DIN1835-B with a solid surface of the cutting tool, high speed and high precision machining . Mechanical spindle and cutting tools and other accessories.

High Precision BT shank Tool Holder, balanced G 6.3  For choose end mill adapter.
BT Tool Holders for mechanical spindle and cutting tool and other accessory tool connection. Is a simple, popular spindle shank connection standard, mainly BT 30,  BT 40,  BT 50... Etc.. Mold industry, and high-speed engraving machine, used more. 

1. TIR: ≤0.0002"
2. Balanced to G 6.3 at 18,000 rpms
3. Works on all BT40 Machines 
4. Rear thread for pull stud is M16*2.0P.
5. Constructed of alloy steel hardened to 56 – 60 HRC for long, durable service life
6.  AT3 or better accuracy standard taper specification for maximum contact with spindle.
7.  Nickel coating surface, Anti-rust, anti-corrosion, durability better.

Anti-rust, anti-corrosion, durability better.

◆Coating adhesion strong, enhance hardness, and anti-rust better in different surroundings, such as alkali, ammonia, salt etc. Overall nickel coating, including inside and outside cone, even if you do not take any anti-rust actions, it will not rust either, don't influence processing precision and spindle . Improve cleanness, precision more stable, surface more smooth, feel more comfortable and appearance nicer.

◆Overall nickel coating, including inside and outside cone, even if you do not take any anti-rust actions, it will not rust either, don't influence processing precision and spindle.

*Cryogenic treatment1.-196℃ long cryogenic, nearly all of the residual austenite into martensite;2. Carbide precipitation of Nanoscale particles, increasing the hardness and toughness;3. Reducing residual stresses;4. Wear resistance significantly improved.

* Thermal aging processing long stereotyped thermal limitation removal of grinding residual stress.

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