Radial Drills for Sale – New Acra & Knuth, Plus Used Machines
At Sterling Machinery Exchange, we sell new Acra and Knuth radial drills along with a large inventory of used models from leading manufacturers. A radial drill—also called a radial arm drill—offers unmatched versatility for drilling, tapping, counterboring, reaming, and countersinking large or heavy workpieces that are difficult to move. Our experts can help you choose the right size and capacity for your material and workspace.
Why Choose a Radial Drill?
• Flexible Reach: The rotating arm and adjustable head let you drill anywhere on the workpiece without repositioning it.
• Heavy-Duty Performance: Ideal for metal fabrication, maintenance, and industrial manufacturing.
• Multi-Function Capability: Performs drilling, tapping, reaming, and counterboring operations in one setup.
• Precision & Power: Variable spindle speeds and quill travel provide accuracy for deep or large-diameter holes.
• New & Used Options: Choose from new Acra and Knuth models or fully inspected used drills from top brands.
Buy or Trade a Radial Drill
Sterling Machinery has specialized in drilling and fabrication machinery since 1954. Whether you need a new Acra or Knuth radial drill or want to sell or trade your used drill, our team will help you find the right machine and financing for your shop.
How to Choose the Right Radial Drill
When purchasing a radial drill, it’s important to understand key specifications that determine capacity, precision, and ease of use. Below are the most important factors our experts review with every customer:
1. Throat Distance
The distance from the center of the column to the center of the spindle defines how far you can reach into a part. Larger throat distances allow drilling of wide or tall workpieces.
2. Spindle Travel (Quill Stroke)
Spindle travel determines how deep the drill can penetrate a workpiece. Greater travel offers more flexibility for large components or multi-step operations.
3. Drill Bit Capacity
Match the drill’s maximum bit diameter to the holes you’ll be making. Heavy-duty radial drills can accommodate bits several inches in diameter for structural or plate work.
4. Power & Speed Range
Higher horsepower and a wide range of spindle speeds let you handle everything from aluminum to hardened steels. Variable speed control improves finish and tool life.
5. Arm Length & Rotation
The length of the radial arm determines reach. Smooth rotation and height adjustment let operators position the head exactly where needed without moving the workpiece.
6. Build Quality & Features
Look for rigid column construction, precision gears, and optional features like coolant systems, tapping attachments, or digital readouts. These improve productivity and accuracy.
7. Budget & Space
Radial drills range from compact shop models to massive industrial machines. We’ll help you match capacity, footprint, and price to your shop’s requirements.
Trusted Expertise Since 1954
Sterling Machinery Exchange and Fabrication has done the research for you. We know the reputations and capabilities of major manufacturers—Acra, Knuth, Jet, Cincinnati, Wilton, G&L, Baileigh, Clausing, and more. Whether buying or selling, count on Sterling for financing, appraisals, liquidations, and top-dollar purchases of used radial drills.
Call us today at (626) 444-0311 to speak with a radial drill specialist and schedule a live or virtual demonstration.




