by Bernard Martin

When your machining application demands quick-change precision with rock-solid repeatability, Rocky Mountain Twist’s Threaded Shank Drills deliver exactly what your shop floor needs. Engineered for production environments that require minimal downtime and maximum performance, these drills are a go-to solution for everything from aerospace to general job shop work.

What sets Rocky Mountain Twist apart isn’t just their high-speed manufacturing processes or vertically integrated operations—it's their tight quality control and dedication to American-made excellence. Their threaded shank drills are no exception, offering a rugged and repeatable design optimized for CNC machining centers using quick-change tool systems.

Why Threaded Shanks?
Threaded shank drills are designed for toolholders that use threaded retention systems, such as precision collet chucks or Swiss-type live tooling heads. Unlike traditional straight shanks, the threaded interface provides:

• Zero axial movement during operation
• Fast and repeatable indexing when swapping tools
• High torque resistance without slipping under load

That makes them ideal for close-tolerance drilling where precision hole location and repeatability between setups matter most.

Technical Specs and Performance Features
Here’s what you can expect from Rocky Mountain Twist’s Threaded Shank Drill lineup:

• Drill Diameters: From Ø0.015" (0.38mm) to Ø0.500" (12.7mm)
• Shank Types: Threaded Shank, compliant with industry standards including 8-32, 10-32, and M5 threads depending on tool diameter
• Materials: Made from premium high-speed steel (HSS) or cobalt HSS, depending on application requirements
• Point Geometry: Split point, 135°, with self-centering capability for burr-free starts, even on curved or hard surfaces
• Flute Types: Right-hand spiral with precision-ground geometry for optimal chip evacuation and hole finish
• Tolerances: Typical diameter tolerances held to ±0.0005", with concentricity optimized for high-RPM drilling applications
• Coatings Available:
  • TiN (Titanium Nitride) – general-purpose wear resistance
  • TiCN (Titanium Carbonitride) – ideal for harder steels and alloy materials
  • TiAlN (Titanium Aluminum Nitride) – recommended for high-heat applications and dry cutting scenarios

All drills are fully ground for consistent flute geometry, which improves chip flow and reduces tool breakage—particularly important in deep hole drilling or tougher alloys.

Ideal Applications
Rocky Mountain Twist's Threaded Shank Drills are popular in:

• Swiss-style CNC turning centers
• High-precision aerospace component machining
• Medical device manufacturing
• Any environment using quick-change or live tooling systems that benefit from reduced tool setup time

They’re perfect for operators who need consistency from tool to tool, without having to reset or dial in every time.

If you’re ready to reduce cycle times, increase hole quality, and boost tool change efficiency, it’s time to give Rocky Mountain Twist’s Threaded Shank Drills a test run. Reach out to Factory Tooling Solutions and let’s set you up with the right drill, geometry, and coating combination for your application.

by Bernard Martin

When you're cutting non-ferrous materials or composite stacks, you know that tool life, edge life, and surface finish can make or break a job. That’s where Mapal PCD tooling really shines. Known for precision, longevity, and optimized performance in high-speed applications, Mapal ’s polycrystalline diamond (PCD) solutions are engineered for shops that can’t afford to cut corners—or stop production for frequent tool changes.

Whether you're machining aluminum components for aerospace, carbon-reinforced plastics for automotive, or copper alloys for energy systems, Mapal delivers tools that stay sharp and consistent.

Why PCD?
PCD (Polycrystalline Diamond) is sintered diamond grit bonded with a metallic matrix, creating an ultra-hard cutting material ideal for abrasive and non-ferrous workpieces.

Compared to carbide, PCD offers up to 100x longer tool life in the right application—and dramatically reduces built-up edge and microburr formation, which saves time on post-processing.

Mapal’s PCD Tooling Range
Mapal offers a comprehensive selection of PCD tooling to suit everything from drilling and reaming to milling and contouring. Here's what you can expect:

PCD Milling Tools

• Applications: Face milling, slotting, shoulder milling, and contour milling of aluminum alloys, magnesium, and CFRP/GFRP.
• Sizes: Diameter ranges from Ø3 mm up to Ø200 mm depending on tool style.
• Designs: Monoblock, brazed, and replaceable-head versions.
• Tolerance: Down to ±0.01 mm on diameter, and exceptionally high surface finish capability (Ra < 0.4 µm with optimized parameters).
  

PCD Drills

• Applications: Precision drilling in aluminum engine blocks, transmission housings, and battery components.
• Geometry: Special flute geometries for optimized chip evacuation and reduced built-up edge.
• Diameter Range: From Ø3 mm up to Ø32 mm standard, with custom options available.
• Coolant Options: Internal through-coolant options for high-volume chip control.

PCD Reamers

• Applications: High-precision hole sizing in aerospace and automotive components.
• Tolerances: H6 and tighter, ensuring precise fits in critical assemblies.
• Designs: Fixed blade and adjustable reamers, with step reaming options for multi-diameter holes.

PCD Combination Tools

• For multi-step operations in a single pass—ideal for automated production lines where cycle time is critical.
• Custom-engineered based on your component specs, material, and machine interface.

Coatings and Edge Treatments
While PCD is itself the cutting edge, Mapal adds proprietary treatments to improve chip flow, reduce friction, and prevent delamination when working with layered composites. Edges can be honed or laser-cut for ultimate sharpness and consistency.

Reconditioning & Regrinding
One of the benefits of Mapal's PCD tooling is that many tools can be professionally reconditioned multiple timeswithout sacrificing performance. This significantly extends your ROI and keeps your tooling inventory lean.

Ready to Upgrade Your Tooling?
If you're cutting aluminum, magnesium, CFRP, or other non-ferrous materials, Mapals PCD tooling might be the last upgrade you need for a long while. Factory Tooling Solutions can help you spec out the right geometry, holder style, and chipbreaker for your application—and even set you up with a test tool to see the difference in action.

Let’s talk about how PCD can eliminate headaches and boost your output.