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Tungsten Carbide Tipped Hollow Core Drill for Metal Fabrication, Factory Price, Global B2B Supply
Our TCT (Tungsten Carbide Tipped) annular cutter, also known as a carbide hollow core drill bit, is a premium industrial-grade cutting tool engineered for high-efficiency, high-precision hole making in metal materials. Unlike traditional solid twist drills that remove 100% of the material in a hole, annular cutters only cut the peripheral edge of the hole, removing up to 85% less material, delivering 3-5x faster drilling speeds, and drastically reducing tool wear and operating costs.
Manufactured with industrial-grade tungsten carbide cutting teeth and high-strength hardened alloy steel bodies, our TCT annular cutters are the ultimate solution for metal fabricators, steel construction teams, maintenance technicians, and industrial manufacturers worldwide. They are universally compatible with all standard Weldon shank magnetic drill presses, making them a versatile, plug-and-play addition to your tool inventory.
✅ Premium Industrial-Grade Tungsten Carbide Cutting Teeth
Each cutting tooth is precision ground from high-grade YG8 tungsten carbide, with a hardness of up to HRA 92.5+, delivering exceptional wear resistance, impact resistance, and red hardness. It maintains sharp cutting edges even under continuous high-temperature cutting on high-hardness materials like 304/316 stainless steel and high-strength alloy steel, with a service life 5-8x longer than ordinary HSS annular cutters and 10x longer than bi-metal hole saws.
✅ High-Strength Hardened Alloy Steel Body
The main body is manufactured from high-strength 40Cr chromium-molybdenum alloy steel, with full-body quenching and tempering treatment for superior torsional strength, anti-deformation performance, and vibration resistance. The precision-ground helical flutes ensure smooth chip evacuation and minimal cutting resistance during heavy-load operations, eliminating tool breakage and ensuring stable performance.
✅ Universal Weldon Shank Design
Equipped with industry-standard Weldon shanks (available in 3/4" / 19.05mm and 1-1/4" / 31.75mm universal sizes), our TCT annular cutters are fully compatible with over 98% of magnetic drill presses, portable magnetic drills, and vertical drilling machines on the global market, with easy, firm clamping and zero slippage during operation.
✅ Optimized Helical Flute & Cutting Geometry
The optimized 35° helical flute design provides continuous, smooth cutting and efficient chip evacuation, reducing cutting resistance by 40% compared to standard cutters. The staggered tooth geometry ensures even force distribution, low vibration, and clean, burr-free hole walls, eliminating the need for secondary reaming, deburring, or finishing operations.
✅ Ultra-High Drilling Precision
Every annular cutter is precision ground with strict concentricity control (total runout ≤0.03mm), delivering perfectly round, vertical, burr-free holes with a smooth wall finish. It eliminates tapered, uneven holes common with traditional drills, meeting the strictest high-precision machining requirements for industrial bolt holes and structural steel connections.
| Parameter | Available Options |
|---|---|
| Cutting Diameter | 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 25mm, 26mm, 28mm, 30mm, 32mm, 35mm, 40mm, 45mm, 50mm, 55mm, 60mm, 65mm, 75mm, 100mm (custom non-standard sizes available) |
| Effective Cutting Depth | 25mm, 35mm, 50mm, 75mm, 100mm, 150mm (custom extended depth supported) |
| Cutting Tooth Material | Industrial Grade YG8 Tungsten Carbide (TCT) |
| Body Material | High Strength 40Cr Hardened Alloy Steel |
| Shank Type | Standard Universal Weldon Shank (3/4" / 19.05mm; 1-1/4" / 31.75mm) |
| Number of Cutting Teeth | 4-12 teeth (optimized for drill diameter) |
| Compatible Equipment | Magnetic Drill Press, Portable Mag Drill, Vertical Drilling Machine, Milling Machine |
| Compatible Materials | Stainless Steel (304/316), Carbon Steel, Mild Steel, Alloy Steel, Cast Iron, Aluminum, Copper, Galvanized Sheet, Steel Plate |
| Performance Metric | TCT Carbide Annular Cutter | HSS Solid Twist Drill | Bi-Metal Hole Saw | HSS Annular Cutter |
|---|---|---|---|---|
| Drilling Speed (10mm Mild Steel, 22mm Hole) | 8-12 seconds/hole | 35-45 seconds/hole | 25-35 seconds/hole | 15-20 seconds/hole |
| Average Service Life (10mm 304 Stainless Steel) | 1200-1500 holes | 150-200 holes | 100-150 holes | 300-400 holes |
| Hole Quality | Perfectly round, burr-free, no taper | Tapered, heavy burrs | Rough edges, warping risk | Clean finish, minor burrs |
| Material Compatibility | All metals, including stainless steel | Only mild steel | Only thin sheet metal | Mild steel, non-ferrous metals |
| Long-Term Cost Efficiency | Highest (low replacement, no secondary labor) | Lowest (frequent replacement) | Low (short service life) | Medium |
Our TCT annular cutters are the workhorse of countless industrial sectors, delivering unmatched value in:
🏗️ Steel Structure Fabrication & Construction: Fast, precise hole making for bolted connections in steel beams, I-beams, and steel plates for commercial buildings, stadiums, and industrial facilities.
🌉 Bridge, Highway & Railway Infrastructure: Heavy-duty drilling in high-strength steel for bridge girders, guardrails, and railway tracks, ensuring structural integrity and project timelines.
🚢 Shipbuilding & Offshore Engineering: Drilling in corrosion-resistant stainless steel and marine-grade steel for hull fabrication, pipe installation, and equipment mounting.
🏭 Industrial Equipment Maintenance & Overhaul: Fast, on-site drilling for power plants, petrochemical facilities, and manufacturing plants, reducing equipment downtime.
🚗 Automotive & Heavy Truck Manufacturing/Modification: Precision drilling for chassis modification, roll cage fabrication, and exhaust system installation.
🔧 HVAC, Plumbing & Electrical Installation: Clean, round hole cutting in steel ductwork, pipe supports, and electrical enclosures, with no material warping.
As a professional manufacturer, we offer flexible B2B cooperation solutions for global buyers:
✅ Bulk Wholesale: Competitive factory prices for large-volume orders, with stable supply and fast global shipping.
✅ OEM/ODM Customization: Custom non-standard sizes, cutting depths, shank types, and brand logo laser engraving to meet your specific business needs.
✅ Private Label Support: Custom packaging and private labeling to build your own brand.
✅ After-Sales Support: 12-month warranty for non-human damage, 7×24-hour technical support, and full spare parts supply.
Welcome to Dashuo Tools, your trusted global partner for high-quality hardware tools.
As a senior foreign trade enterprise specializing in the sales of hardware tools, we are committed to providing reliable, efficient, and cost-effective tool solutions to customers around the world through our own foreign trade website
