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Steep Taper Drawbars & Grippers (SK)
Unbeatable retention and quick changes with rigid, precise steep taper drawbars.
Machine Tool Ecosystem
Tool Clamping & Drawbars
End-to-end solutions for CNC machine tool clamping—from reliable automatic drawbar systems to fast repair services and precision spindle shaft manufacturing. As the exclusive OTT-JAKOB partner in North America for 40+ years, we deliver proven technology with expert support.
Expertise, Service, and Proven Technology
Advanced Machine & Engineering, a Division of Hennig, provides end-to-end solutions for CNC machine tool clamping – from reliable automatic drawbar systems to fast repair services and precision spindle shaft manufacturing. As the exclusive OTT-JAKOB partner in North America for 40+ years, we deliver proven technology with expert support.
Whether you’re looking for a new drawbar, a replacement spindle shaft, or a custom solution, we’re here to help. Let us know what you need, and we’ll get you a quote—fast.
Tool Clamping & Drawbars
Key Advantages
As the exclusive North American partner of OTT-JAKOB we bring you proven technology trusted by machine tool builders worldwide.
OTT-JAKOB is the global benchmark for precision tool clamping—engineered for maximum accuracy, repeatability, and uptime—so you can run faster feeds, tighter tolerances, and longer tool life on every job. Their modular solutions fit virtually any spindle, simplifying changeovers and reducing setup time, while robust design and world-class after-sales support keep your operation moving without compromise.
OTT-JAKOB is the global benchmark for precision tool clamping—engineered for maximum accuracy, repeatability, and uptime—so you can run faster feeds, tighter tolerances, and longer tool life on every job. Their modular solutions fit virtually any spindle, simplifying changeovers and reducing setup time, while robust design and world-class after-sales support keep your operation moving without compromise.
Fast, Reliable Service & Repair
Minimize downtime with rapid, expert support.
Custom Solutions
From special drawbars to unique spindle shafts and tool holders, we meet your exact needs.
Knowledgeable Team
Rely on our experts for support and tribal knowledge every step of the way.
Industry-Leading Clamping Force
OTT-JAKOB automatic power drawbars feature a patented intensifier that delivers unmatched clamping force—keeping your tools secure even under heavy loads.
Compact, Modular Design
Our systems are engineered to fit virtually any spindle interface and machine configuration, offering seamless integration and easy maintenance.
Integrated Monitoring & Safety
Many systems feature integrated sensors and monitoring for safe, consistent performance—catching problems before they cause costly downtime.
Tool Clamping & Drawbars
Product Lineup
OTT-JAKOB Automatic Tool Clamping Systems
Hollow Shank Drawbars & Grippers (HSK)
Enhanced coolant flow with rigid hollow shank drawbars and grippers.
Polygon Shank Cone Drawbars and Grippers (PSC)
Torsional rigidity and precision with Polygon Shank Cone drawbars and grippers.
KM4X Drawbars and Grippers
High-speed balance and reliable clamping with KM4X drawbars and grippers.
Unclamp Units
Fast, precise unclamping for streamlined tool changeovers with unclamp units.
Rotary Unions
Leak-free fluid transfer with high-speed, high-pressure rotary unions.
OTT-JAKOB Manual Tool Clamping Systems
Manual Polygon Shank Cone (PSC) Clamping Units
Secure, reliable clamping with PSC units for seamless tool retention.
Manual Clamping Units (HSK)
Secure, reliable clamping with PSC units for seamless tool retention.
OTT-JAKOB Pull-Force Gauges
Power-Check 2
Optimal drawbar force monitoring and tool clamp health with Power-Check 2.
Power-Check Magazine
Power-Check Accessories
Get the most out of your OTT-JAKOB Power-Check system with accessories that simplify operation and expand functionality—keeping your tool clamping maintenance efficient and reliable.
OTT-JAKOB Assistance Systems
Condition Monitoring
Real-time health monitoring with OTT-JAKOB’s conditional monitoring system.
MSU Sensor System
Monitor drawbar force and tool status with MSU sensor system.
Precision Spindle Shafts
Custom Tool Holders
AME is known for its prowess in custom, non-standard tooling specials, including custom length toolholders, collet chucks, test arbors, and much more.
Spindle Shaft Manufacturing
Every shaft is manufactured in-house, inspected with Stotz air gauging, and shipped as a complete, ready-to-install clamping package that meets or exceeds OEM tolerances for accuracy, concentricity, and durability.
Retrofit & Reverse Engineering Services for Tool Clamping
When legacy tooling or spindle assemblies hold your productivity back, Hennig's retrofit and reverse-engineering team delivers OEM-grade replacements and performance upgrades—fast.
Maintenance Tools & Accessories
Tool Clamping Inspection Kit
Customizable kit for inspecting and verifying precise tool clamping performance.
From the Resource Hub
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Related Content
Blogs
Tool Clamping/Drawbars
How does consistent drawbar pull-force translate to improved machining outcomes?
In the machining process, it can often be difficult for machinists to chase down the source of particular issues. Poor surface finish, rapid tool wear, taper corrosion, machine downtime, and tool breakage can each have multiple causes. However, there is one thing that can impact all of these: the pull-force of a spindle’s tool clamping system.
Blogs
Tool Clamping/Drawbars
Product Selection
Top 5 Reasons to Choose OTT-JAKOB Tool Clamping Systems
Choosing the wrong tool clamping system partner can be a serious mistake. Old-school CNC machine tool clamping solutions may need extra maintenance, experience shorter lives, and can even be hazardous to operators. So, what do we recommend? OTT-JAKOB!
Blogs
Tool Clamping/Drawbars
Industry Trends
How OTT-JAKOB is Incorporating Industry 4.0 in Your Spindle
We’re all familiar with the products of Industry 4.0--it encompasses the smartphones in our pockets and tire pressure monitors in our cars. Learn how OTT-JAKOB is bringing the fourth industrial revolution to your spindle.