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[Primary Applications]
Face-contact tapers provide additional radial load capabilities due to the large spindle contact surface compared with standard ANSI B5.50 or MAS BT 403 tapers.
Excellent for long-reach axial cutting tools where cutting tip TIR is critical for part dimension achievement and machined surface location/
With the wide face-contact longer axial cutting tools with high radial loads will have less "bending" or improved dynamic stiffness and rigidity.The vibration dampening of these holders reduces spindle wear and extends cutting tool life.
Designed for use in CNC Machining centers With Face Contact spindles and automatic tool changers.
BBT Tool Holders are only recommended to use in Calibrated BBT Spindle Machines
[Primary Applications]
Face-contact tapers provide additional radial load capabilities due to the large spindle contact surface compared with standard ANSI B5.50 or MAS BT 403 tapers.
Excellent for long-reach axial cutting tools where cutting tip TIR is critical for part dimension achievement and machined surface location/
With the wide face-contact longer axial cutting tools with high radial loads will have less "bending" or improved dynamic stiffness and rigidity.The vibration dampening of these holders reduces spindle wear and extends cutting tool life.
Designed for use in CNC Machining centers With Face Contact spindles and automatic tool changers.





Hainer Tools is a professional manufacturer of machine tool parts and precision machinery. The main products are Toolholders,ER Collet , Rubber Collets , Steel Sealed Collets ,CNC tool holder, Drillchuck, pull stud, nut and wrench/spanner,CNC vise,end mill,parallel block and so on. The company has experienced technical R&D personnel, who can make complex product samples based on samples or drawings.
Hainer Tools has always been adhering to the business philosophy of "Quality First, Honesty Dependence", with the best product quality, the most reasonable product price, and the most thoughtful and convenient service, it has established a good reputation among colleagues and customers at home and abroad.
Our Services & Strength
1. Guarantee quality which mainly embodied in real accuracy.
2. Huge production capacity to ensure in time delivery
3. Manufacture that can accept OEM service.
4. Professional sales team and engineers.
5. Sufficient experience in domestic and international sales
6. Prompt reply which response in 15 minutes
7. Never stop in innovating and improving.
New products from manufacturers at wholesale prices