Tooling Combines Multiple Machining Operations to Eliminate Tool Changes
Heule COMBI tooling delivers multiple hole-finishing operations in one compact solution, helping manufacturers reduce cycle times and improve productivity. Heule Precision Tools, a leader in precision hole finishing technology, introduces versatile COMBI tooling which can be configured to drill, chamfer, countersink, and in certain configurations, spotface in a single, compact tool. This unique technology saves both time and money while optimizing space utilization. Eliminating tool changes significantly reduces cycle times and enhances efficiency while ensuring consistent, high-quality results with each operation. These tailor-made solutions provide unmatched versatility and adaptability to site-specific manufacturing challenges. Sizes ranging from 9.5 mm to 35 mm (0.374” to 1.378”) are readily available for immediate delivery, thus minimizing downtime and production interruptions. Through coolant is available, as are varied lengths to improve rigidity or meet specific application requirements. Heule COMBI tooling is ideal for precision, high-volume applications, including those found in the heavy equipment and large parts industries. Common automotive applications include wheel, axle, and brake disc components.
The COMBI tool uses a standard spade drill and SNAP chamfer blade to create drilled holes that are chamfered and deburred on the front and back of the workpiece in one operation.
The drill forward-feeds completely through the workpiece until the spade drill insert clears the part. The tool then rapid-feeds so the SNAP blade is positioned just above the workpiece surface. Feeding the tool forward produces the front chamfer. When the SNAP blade is retracted in the hole, only the ground sliding surface contacts the hole, protecting it from damage while the tool is fed through the part at rapid feed. There is no stopping or reversing of the spindle.
When the blade reaches the back side past the burr, the chamfer blade extends to the cutting position and the tool is retracted using the same working feed and speed. Once the blade is again inside the hole, the tool can be rapid-fed out and moved on to the next hole. Standard countersink COMBI tools add pocketed ISO inserts to the tool body to create large front countersinks.
About Heule Precision Tools
HEULE Precision Tools has manufactured the highest quality cutting tools since 1961, supporting a wide range of hole-finishing tools for front and back deburring, countersinking, chamfering, and counterboring for larger industrial manufacturing companies throughout the world. They specialize in high production environments in the automotive, aerospace, energy, and medical industries.
