About Karnasch Professional Tools
Karnasch Carbide Cutting Tools & CNC Drills
Karnasch Professional Tools GmbH is a manufacturer of high-performance cutting tools headquartered in Heddesheim, Germany, with over 60 years of precision engineering specializing in solid carbide drills, end mills, spade drills, and composite cutting tools for metalworking and CNC machining. The company has built a reputation for optimal-quality tooling and customer-centric service, supplying machine shops, tool-and-die operations, and contract manufacturers across industrial sectors requiring deep-hole drilling, advanced composites work, and high-speed cutting applications.
Karnasch's core product portfolio includes solid carbide drills engineered for deep-hole drilling in steel, stainless steel, hardened steel (up to 70 HRC), titanium, Inconel, aluminum, and fiber-reinforced composites (GRP/CRP). Each tool type features modern TiAlN, CVD diamond, or other specialized coatings adjusted to material type, delivering extended tool life and dimensional precision for CNC mills, radial drilling machines, and production-line automation.
The company's micro-drill line serves precision molding and small-component machining with diameters as small as 0.5 mm, while their spade-drill series—with exchangeable solid carbide or powder-steel cutting heads—enables high production rates on pillar and radial drilling equipment. Karnasch PCD (polycrystalline diamond) and MKD end mills are optimized for non-ferrous and composite workpieces, reducing thermal cycling and tool wear in aerospace and automotive component production.
Karnasch's engineering focus is on matching cutting speeds, feed rates, and tool geometry to workpiece material and machine type, reducing scrap, tool changeover time, and operator setup complexity. Technical datasheets and speed-feed tables accompany every product, enabling rapid tool selection and process optimization across diverse metalworking applications.
ChatMRO's AI instantly correlates your workpiece material, depth-of-cut, spindle speed, and CNC machine type to Karnasch's cutting-tool inventory, surfacing the optimal drill diameter, coating, and feed-rate recommendation along with pricing from authorized distributors—shortening tool procurement and enabling just-in-time ordering for production schedules.
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Frequently asked questions
What coating materials does Karnasch use on its carbide drills, and which is best for my material?
Karnasch applies TiAlN (titanium aluminum nitride) for general steel and stainless work, CVD diamond for aluminum and composites, and specialty coatings (TiCN, ZrN) for specific applications. TiAlN excels at high-speed steel drilling with extended flank life; CVD diamond reduces friction and heat in non-ferrous metals; Karnasch's product datasheet recommends coating by workpiece material, or ChatMRO's RFQ can auto-suggest based on your description.
Can Karnasch drills handle deep-hole drilling beyond 10 diameters deep?
Yes, Karnasch solid carbide drills are engineered for deep-hole applications and routinely machine holes 10–50+ diameters deep in steel and composites with proper coolant flow and feed-rate control. Carbide's high modulus (stiffness) reduces chatter compared to HSS; Karnasch provides spiral-flute and straight-flute variants to manage chip evacuation at depth, and technical support is available to optimize feeds and speeds for your specific setup.
What is the difference between PCD, CVD diamond, and standard carbide coatings?
PCD (polycrystalline diamond) is a solid diamond composite best for abrasive non-ferrous materials (aluminum, composites, graphite) where friction and heat are the limiting factors—it offers superior wear resistance but is brittle on interrupted cuts. CVD diamond is a thin chemical-vapor-deposited coating on carbide substrate, balancing toughness and heat resistance for both ferrous and non-ferrous work. Standard carbide with TiAlN/TiCN coatings offers toughness and speed for interrupted, general-purpose machining.
How do I choose between Karnasch's spade-drill and solid-carbide designs?
Spade drills with exchangeable carbide cutting heads are ideal for high-volume production runs where tool cost and changeover time are critical—the heads are cheaper and faster to swap than re-sharpening. Solid carbide drills offer better precision, longer tool life between resharpening, and work in deeper-hole applications; choose spade for production lines (oil/gas, automotive drilling) and solid carbide for tool-and-die or low-volume precision work.
Can Karnasch composite tools machine fiber-reinforced plastics without delamination?
Yes, Karnasch's composite-specific tools (PCD edge geometry, special flute design, and diamond coatings) are optimized to minimize fiber pullout and delamination in GRP and CRP workpieces. The tools maintain consistent cutting speed and feed through the thickness to prevent matrix cracking; technical datasheets specify recommended spindle speeds (often higher than steel) and chip-clearance requirements to avoid buildup.