DRILLSTAR CARBIDE TOOLS ARE WORKING IN MANY PLACES AROUND THE WORLD
The Solid Gun Drill is a premium deep hole drilling tool designed for precision and durability in creating holes with extreme depth-to-diameter ratios, typically up to 150:1. Constructed from a single piece of high-speed steel (HSS) or solid carbide, this drill eliminates the risk of tip detachment, offering superior structural integrity and vibration damping compared to brazed or welded alternatives. Its streamlined design features a single flute for unobstructed chip evacuation and an internal coolant channel that delivers high-pressure fluid directly to the cutting zone, ensuring optimal heat dissipation and tool life in demanding materials.
Engineered for both through-holes and blind holes, the Solid Gun Drill excels in maintaining straightness (≤0.15mm/m deviation) and surface finish (Ra ≤ 1.6μm) across a range of applications, from automotive components to aerospace structures. Its standardized shank interfaces (such as Morse taper or cylindrical) allow easy integration with most drilling machines and CNC lathes, making it a versatile choice for shops requiring consistent deep hole quality.
1. Monolithic Construction: Made from fully hardened HSS (63-65 HRC) or micrograin solid carbide (1500 HV), the drill resists bending and breaking even at maximum drilling depths, providing reliable performance in abrasive materials like cast iron and nickel alloys.
2. Optimized Flute Geometry: The single flute design creates a large chip passageway, reducing the risk of chip jamming in deep bores. A 30° helix angle balances chip evacuation efficiency with cutting stability, minimizing surface defects.
3. Integrated Coolant System: A central coolant bore delivers fluid at pressures up to 150 bar, cooling the cutting edge and flushing chips out through the flute. This internal system is 30% more effective than external cooling in preventing tool overheating.
4. Precision Ground Cutting Edge: The drill tip is ground to a 118° point angle with a reinforced web, enhancing penetration speed and centering accuracy. Optional PVD coatings (TiN, TiAlN) increase wear resistance by 50% in high-temperature applications.
5. Customizable Lengths & Diameters: Available in diameters from 2mm to 30mm and lengths up to 2 meters, with special configurations for left-hand rotation and stepped diameters to accommodate unique workpiece requirements.
Automotive Fuel Systems: Drills deep injector holes in aluminum alloy cylinder heads, ensuring tight tolerances for fuel spray precision. The drill’s consistency reduces rework in high-volume production lines.
Firearm Manufacturing: Creates rifled bores in steel gun barrels with mirror-like finishes (Ra ≤ 0.8μm), critical for ballistic accuracy. The solid construction minimizes vibration during long-barrel machining.
Hydraulic Systems: Machines deep pressure ports in stainless steel valves, where smooth internal surfaces prevent fluid leakage and maximize component lifespan.
Aerospace Heat Exchangers: Drills cooling holes in titanium alloy panels with high aspect ratios, maintaining straightness to avoid structural weakening in aircraft engines.
Mold & Die Making: Used for ejector pin holes in hardened tool steel (50-60 HRC), offering longer tool life than brazed drills in high-hardness materials.
Q: Can the Solid Gun Drill be used without internal coolant?
A: While internal coolant is recommended for optimal performance, the drill can operate with external cooling in shallow holes (depth <50x diameter). However, chip evacuation may be compromised in deeper bores.
Q: What is the recommended feed rate for machining hardened steel?
A: For steels up to 50 HRC, feed rates should range from 0.05-0.1mm/rev, depending on diameter. Higher feeds may cause tool breakage in harder materials.
Q: How is drill straightness maintained in long bores?
A: The drill’s rigid monolithic structure, combined with guide bushings at the workpiece surface, ensures minimal deflection. Pre-drilling a pilot hole also improves initial centering.
Q: Can the drill be resharpened after wear?
A: Yes, solid carbide drills can be resharpened 3-5 times using CNC grinders, while HSS versions offer 5-8 resharpenings. Regular resharpening restores cutting performance and extends tool life.
Q: What safety precautions should be taken during operation?
A: Always use a secure tool holder, maintain proper coolant pressure, and wear protective gear. Avoid sudden stops during deep drilling to prevent chip jams and tool breakage.
The Solid Gun Drill is a premium deep hole drilling tool designed for precision and durability in creating holes with extreme depth-to-diameter ratios, typically up to 150:1. Constructed from a single piece of high-speed steel (HSS) or solid carbide, this drill eliminates the risk of tip detachment, offering superior structural integrity and vibration damping compared to brazed or welded alternatives. Its streamlined design features a single flute for unobstructed chip evacuation and an internal coolant channel that delivers high-pressure fluid directly to the cutting zone, ensuring optimal heat dissipation and tool life in demanding materials.
Engineered for both through-holes and blind holes, the Solid Gun Drill excels in maintaining straightness (≤0.15mm/m deviation) and surface finish (Ra ≤ 1.6μm) across a range of applications, from automotive components to aerospace structures. Its standardized shank interfaces (such as Morse taper or cylindrical) allow easy integration with most drilling machines and CNC lathes, making it a versatile choice for shops requiring consistent deep hole quality.
1. Monolithic Construction: Made from fully hardened HSS (63-65 HRC) or micrograin solid carbide (1500 HV), the drill resists bending and breaking even at maximum drilling depths, providing reliable performance in abrasive materials like cast iron and nickel alloys.
2. Optimized Flute Geometry: The single flute design creates a large chip passageway, reducing the risk of chip jamming in deep bores. A 30° helix angle balances chip evacuation efficiency with cutting stability, minimizing surface defects.
3. Integrated Coolant System: A central coolant bore delivers fluid at pressures up to 150 bar, cooling the cutting edge and flushing chips out through the flute. This internal system is 30% more effective than external cooling in preventing tool overheating.
4. Precision Ground Cutting Edge: The drill tip is ground to a 118° point angle with a reinforced web, enhancing penetration speed and centering accuracy. Optional PVD coatings (TiN, TiAlN) increase wear resistance by 50% in high-temperature applications.
5. Customizable Lengths & Diameters: Available in diameters from 2mm to 30mm and lengths up to 2 meters, with special configurations for left-hand rotation and stepped diameters to accommodate unique workpiece requirements.
Automotive Fuel Systems: Drills deep injector holes in aluminum alloy cylinder heads, ensuring tight tolerances for fuel spray precision. The drill’s consistency reduces rework in high-volume production lines.
Firearm Manufacturing: Creates rifled bores in steel gun barrels with mirror-like finishes (Ra ≤ 0.8μm), critical for ballistic accuracy. The solid construction minimizes vibration during long-barrel machining.
Hydraulic Systems: Machines deep pressure ports in stainless steel valves, where smooth internal surfaces prevent fluid leakage and maximize component lifespan.
Aerospace Heat Exchangers: Drills cooling holes in titanium alloy panels with high aspect ratios, maintaining straightness to avoid structural weakening in aircraft engines.
Mold & Die Making: Used for ejector pin holes in hardened tool steel (50-60 HRC), offering longer tool life than brazed drills in high-hardness materials.
Q: Can the Solid Gun Drill be used without internal coolant?
A: While internal coolant is recommended for optimal performance, the drill can operate with external cooling in shallow holes (depth <50x diameter). However, chip evacuation may be compromised in deeper bores.
Q: What is the recommended feed rate for machining hardened steel?
A: For steels up to 50 HRC, feed rates should range from 0.05-0.1mm/rev, depending on diameter. Higher feeds may cause tool breakage in harder materials.
Q: How is drill straightness maintained in long bores?
A: The drill’s rigid monolithic structure, combined with guide bushings at the workpiece surface, ensures minimal deflection. Pre-drilling a pilot hole also improves initial centering.
Q: Can the drill be resharpened after wear?
A: Yes, solid carbide drills can be resharpened 3-5 times using CNC grinders, while HSS versions offer 5-8 resharpenings. Regular resharpening restores cutting performance and extends tool life.
Q: What safety precautions should be taken during operation?
A: Always use a secure tool holder, maintain proper coolant pressure, and wear protective gear. Avoid sudden stops during deep drilling to prevent chip jams and tool breakage.
