Drills
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No. 4 Drill Drift (Center Key)
Item #: DR63204
When drilling cycle times, positional accuracy, and tool longevity are critical to your shop floor’s profitability, Clarkson-Osborn Tools delivers. As Canada’s premier authority on high-precision cutting tools, we engineer and supply an elite range of industrial twist drills designed to tackle the absolute toughest workpiece materials. With our selection of heavy-duty mining components, our comprehensive drill bits ensure minimal tool deflection, optimized chip evacuation, and a drastically reduced cost-per-hole.
Explore our massive inventory of industrial-grade drills. Whether your setup requires short and ultra-rigid stub drills for high-torque applications, versatile jobber lengths for general fabrication, or heavy Morse taper shanks for large-diameter drilling, we stock the advanced substrates and specialized geometries required to eliminate unexpected machining downtime.
High-Velocity Industrial Drill Bits for Precision Hole-Making
Choosing the right drill bit configuration involves matching your machine’s rigidity, spindle speed, and workpiece hardness to the proper drill length, tip angle, and surface treatment. Our extensive catalog spans a diverse array of professional-grade sub-categories engineered to handle specialized production tasks.
Selecting the Proper Drill Length & Architecture
- Stub Length Drills: Formulated for maximum structural rigidity and absolute minimal deflection. Being shorter than standard lengths, stub drills are the premier choice for shallow-hole drilling in CNC centers or portable equipment where avoiding tool breakage and maintaining strict concentricity are paramount.
- Jobber Length Drills: The universal industry workhorse. Balancing overall length and structural stability, our jobber drills excel at a wide range of standard depth applications across steel, aluminum, brass, and alloys.
- Taper Shank Drills: Engineered with a ground Morse Taper Shank (MTS) for direct mounting into machine spindles, driving sleeves, or lathe tailstocks. These heavy-duty drills provide mechanical positive drive for large-diameter hole creation in heavy industrial settings.
- Specialty Lengths & Geometries: From extra-reach taper length drills for deep cavity penetration to advanced parabolic flute styles that radically enhance chip lifting in deep, gummy holes, our tool inventory addresses any unique machining challenge.
Understanding Tip Geometries & Surface Coatings
The construction of the drill’s tip and its outer surface chemistry drastically alter performance:
- 118° Conventional Point: Optimized for softer materials like mild steel, aluminum, and plastics. Easy to re-sharpen and highly efficient in manual machines.
- 135° Split Point: Engineered specifically for heavy production and harder alloys. The self-centering split point completely eliminates tool “walking” upon initial contact, minimizing the need for center spotting and reducing thrust requirements.
- Advanced Material Coatings: We supply surface treatments including Bright Finish (for general non-ferrous work), Steam Tempered (for improved coolant retention), and Titanium Nitride (TiN) or TiAlN coatings to drastically decrease friction, resist heat breakdown, and compound overall tool life.
Selecting the Drill Material: Substrates & Applications
To stop premature chipping, overheating, and tool failure, match your industrial material group to the correct metallurgical substrate:
| Drill Substrate Type | Best Used For | Key Advantages |
|---|---|---|
| Solid Carbide | Hardened steels, cast iron, abrasive composites, high-speed CNC. | Ultimate hardness, incredible thermal threshold, handles extreme RPMs. |
| Carbide Tipped | Cost-effective hardened steel drilling, rugged cast materials. | Combines the raw cutting power of carbide with a tough, shock-absorbing HSS body. |
| Cobalt Alloys (M35/M42) | Stainless steels, titanium, high-tensile alloys, structural steel. | Superior red-hardness, maintains sharp cutting edge under immense heat. |
| High-Speed Steel (HSS) | Mild carbon steels, aluminum, brass, copper, general workshop maintenance. | Superior structural toughness, high resistance to shock/vibration, highly economical. |
Why Source Industrial Drills from Clarkson-Osborn Tools?
For over 50 years, Clarkson-Osborn Tools has been Canada’s leading partner for high-precision manufacturing, fabrication, and maintenance engineering. We provide more than just stock numbers—we provide field-tested production solutions:
- Massive Stock Availability: We maintain an extensive range of fractional, wire gauge, letter, and metric dimensions across multiple fluting styles to satisfy your immediate tooling requirements.
- Engineered for Canadian Heavy Industry: Our inventory is selected to endure the severe processing demands of Canada’s core economic sectors—including aerospace component manufacturing, automotive, tool and die, resource extraction, and heavy defense fabrication.
- Comprehensive Tooling Integration: We integrate your drilling needs flawlessly with our matching portfolios of industrial countersinks, reamers, and tapping systems to provide full-lifecycle hole support.
Frequently Asked Questions
You should choose a 135° split point when drilling tough, hard, or work-hardening materials like stainless steel, or when drilling into curved/unstable surfaces. The split point creates a self-centering action that prevents the tool from sliding or “walking” across the metal, protecting your workpiece from scuffing and reducing mechanical strain.
TiN is a microscopic, ultra-hard ceramic coating applied to the drill body. It significantly reduces the coefficient of friction, allowing chips to slide effortlessly up the flutes while acting as a thermal barrier. This enables you to run higher feed rates and speeds while expanding your total tool lifespan by up to 300% to 400% compared to uncoated bits.
Deep-hole drill breakage is typically caused by chip compaction inside the flutes, causing the drill to bind and snap under torsional stress. To prevent this, ensure you use a high-performance cutting fluid, periodically utilize a “peck-drilling” cycle to clear out packed chips, or upgrade to a parabolic flute geometry designed specifically for deep, seamless evacuation.
