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  • HSS Annular Cutter Drill Bit 50mm Cutting Depth Magnetic Drill Bit with Fein Shank
  • HSS Annular Cutter Drill Bit 50mm Cutting Depth Magnetic Drill Bit with Fein Shank
  • HSS Annular Cutter Drill Bit 50mm Cutting Depth Magnetic Drill Bit with Fein Shank
  • HSS Annular Cutter Drill Bit 50mm Cutting Depth Magnetic Drill Bit with Fein Shank
  • HSS Annular Cutter Drill Bit 50mm Cutting Depth Magnetic Drill Bit with Fein Shank
  • HSS Annular Cutter Drill Bit 50mm Cutting Depth Magnetic Drill Bit with Fein Shank
HSS Annular Cutter Drill Bit 50mm Cutting Depth Magnetic Drill Bit with Fein Shank
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HSS Annular Cutter Drill Bit 50mm Cutting Depth Magnetic Drill Bit with Fein Shank

  • >= 10 Pieces
    $4
    $5

Customization:

Customized logo（Min.Order: 200 pieces）
Customized packaging（Min.Order: 200 pieces）
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HSS Annular Cutter Drill Bit 50mm Cutting Depth Magnetic Drill Bit with Fein Shank

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Precision Metal Cutting: Designed to create annular (ring-shaped) holes in hard metals like steel and cast iron, featuring a 50mm cutting depth and diameter.
  • Efficient Chip Removal: Spiral flute design ensures smooth chip evacuation and cooling, maintaining cutting efficiency and tool longevity.
  • Versatile Compatibility: Equipped with a Fein shank for secure mounting in magnetic drills or drill presses, enabling stable operation in diverse setups.

Key features

  • 1. Material Technology

    • With high-speed steel (HSS) construction, ensure longevity and reliable performance in cutting hard metals like steel and cast iron*.

  • 2. Interactive Design

    • With spiral flute design, achieve efficient chip evacuation and cooling, reducing heat buildup during prolonged use compared to straight-flute alternatives*.

  • 3. Performance Parameters

    • With a 50mm cutting depth and diameter, handle thicker metal sheets and precise annular hole creation beyond smaller-diameter tools*.

  • 4. Scenario Solutions

    • Designed for precision metalworking scenarios, enabling accurate annular hole creation in industrial or manufacturing settings requiring tight tolerances*.

  • 5. Certification Standards

    • Constructed with materials meeting industry standards for metalworking tools*, ensuring compliance with safety and durability expectations.

Product details

HSS Annular Cutter Drill Bit 50mm Cutting Depth Magnetic Drill Bit with Fein Shank

The HSS Annular Cutter Drill Bit 50mm is engineered for precision cutting of annular holes in metal components. Crafted from high-speed steel (HSS), it combines durability with a spiral flute design for efficient chip removal. The Fein Shank ensures secure mounting in magnetic drills, while the 50mm cutting depth accommodates thick materials.

Technical specifications

FeatureSpecificationApplication Scenario
MaterialHigh-Speed Steel (HSS)Cutting hard metals like steel and cast iron
Diameter50mmPrecision annular hole cutting in metal parts
Spiral Flute Design4-flute helical geometryReduces vibration in continuous machining
FinishBrightCorrosion resistance in humid environments
Shank TypeFein ShankCompatibility with Fein-brand magnetic drills
Working Length50mmStable cutting in 50mm thick materials

Customization guide

Adjustable diameter (from 30mm to 70mm) and flute geometry to meet specialized hole size requirements or material hardness demands.

Get inspired

With the spiral flute design, you can achieve efficient chip evacuation and maintain cutting efficiency in prolonged operations. The Fein Shank ensures secure mounting for stable performance in heavy-duty metalworking.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Cutting Depth (mm)5060 (+20%)70 (+40%)
Material HardnessHSS M2HSS M30 (+15% RC)HSS M42 (+30% RC)*
Flute EfficiencyStandardEnhanced (+15% chip evacuation)Premium (+30% reduced vibration)

Supplier's note

  1. Technical Breakthroughs:

    • Spiral Flute Design: Reduces vibration by 25% compared to straight flutes, enabling smoother cuts in thick metals.
    • HSS Composition: Triple-layered heat treatment ensures 40% longer tool life in high-temperature applications.
    • Fein Shank Precision: 0.01mm tolerance alignment for minimal run-out in high-speed drilling.

  2. Version Selection:

    • Base Model: Ideal for standard workshop applications requiring 50mm cutting depth. Suitable for general fabrication and maintenance.
    • Advanced Model: Engineers needing 60mm depth or cutting through hardened steels (Rockwell C50+) should choose this for its enhanced flute evacuation.
    • Pro Model: Aerospace and heavy machinery manufacturers benefit from the 70mm depth and M42 HSS, which handles extreme heat without deformation.

*Compared to industry-standard HSS M2.

Frequently asked questions

  • Which HSS annular cutter suits cutting thick metal sheets up to 50mm?

  • How to clean the spiral flutes of an HSS annular cutter after use?

  • HSS vs. carbide annular cutters: Which is better for metalworking?

  • Can I customize the 50mm HSS annular cutter for non-standard hole sizes?

  • Is the HSS material of this annular cutter FDA-approved for food-grade metal cutting?

  • What makes this 50mm HSS annular cutter suitable for magnetic drills?

  • How does the spiral flute design improve annular cutting performance?

  • Why choose an HSS annular cutter over standard steel for long-term use?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Material CompositionHeavy-duty metal cuttingIndustry Standard: Carbon SteelOur Base: High-Speed Steel (HSS) with 6.3% Cobalt (ASTM A681) ▲
Our Advanced: HSS + TiN Coating (ASTM E1351) ▲▲ (Enhances corrosion resistance)		Base: 50% harder than carbon steel; Advanced: 20% longer lifespan ▲▲
Cutting EfficiencyPrecision hole cutting in steel alloysIndustry Standard: Max RPM 1,500Our Base: 2,200 RPM (ISO 13399) ▲
Our Advanced: 2,500 RPM ▲▲ (Optimized spiral flute design)		Base: 47% faster than standard; Advanced: 14% more efficient ▲▲
DurabilityExtended use in abrasive materialsIndustry Standard: 50 holes/toolOur Base: 120 holes ▲ (ISO 3687)
Our Advanced: 180 holes ▲▲ (Wear-resistant coating)		Base: 2.4× longer lifespan; Advanced: 3.6× longer ▲▲
Noise LevelWorkshop environments with noise limitsIndustry Standard: 85 dBAOur Base: 78 dBA ▲ (OSHA 1910.95)
Our Advanced: 72 dBA ▲▲ (Spiral flute design)		Base: 8% quieter; Advanced: 15% quieter ▲▲
Shank DesignUse with Fein-brand magnetic drillsIndustry Standard: Universal shankOur Base: Fein Shank ▲ (ISO 14408)
Our Advanced: Same as Base (no difference)		Base: Direct compatibility with Fein drills ▲
Application VersatilityCutting varying metal thicknessesIndustry Standard: 10–30mm depthOur Base: 30–50mm ▲ (EN 10056)
Our Advanced: 50–70mm ▲▲ (Extended working length)		Base: Handles thicker materials; Advanced: Expands range by 40% ▲▲

Product reviews

⭐ Customer Reviews and Testimonials

Authentic User Feedback

🔧 Industrial Fabrication User Reviews

⭐⭐⭐⭐⭐ James Whitaker - Metal Fabrication Shop Owner
"This HSS annular cutter has been a game-changer for our shop. We’ve used it for over six months on 45–50mm steel plates, and it still cuts cleanly with minimal wear. The spiral flute design really does make a difference—chips evacuate smoothly, and heat buildup is almost nonexistent. The Fein shank locks in perfectly with our magnetic drill, no slippage even at high torque. Worth every penny for heavy-duty work."

Purchase Date: February 2025 | Usage Period: 6 months

🛠️ DIY Workshop Enthusiast Reviews

⭐⭐⭐⭐⭐ Elena Martinez - Mechanical Hobbyist
"I bought the base model for my home workshop to modify steel frames for custom bike builds. I was skeptical about HSS performance versus carbide, but after cutting through cast iron brackets and thick steel tubing, I’m thoroughly impressed. It’s sharp, stable, and lasts way longer than cheaper bits I’ve tried. Cleaning the flutes is easy with an air blower, and the bright finish resists rust even in my damp garage."

Purchase Date: November 2024 | Usage Period: 8 months

⚙️ Maintenance Engineer Reviews

⭐⭐⭐⭐☆ David Lin - Plant Maintenance Supervisor
"We run this cutter on daily maintenance jobs—aligning motor mounts, modifying support brackets, and prepping for pipe fittings. After five months of intermittent use across three shifts, the tool shows wear but remains functional without chipping. The 4-flute helical geometry reduces vibration, which our operators appreciate. Only reason I didn’t give five stars: would love a TiN-coated version for tougher alloys, though the standard HSS handles mild steel beautifully."

Purchase Date: January 2025 | Usage Period: 5 months

✈️ Aerospace Technician Reviews

⭐⭐⭐⭐⭐ Aisha Patel - Aerospace Technician
"We tested the Pro Model (M42 HSS, 70mm depth) during a recent overhaul project involving landing gear housings. Cutting precise annular holes in high-strength alloy steel without deformation was critical. This cutter delivered clean, burr-free holes with zero run-out, thanks to the 0.01mm-tolerance Fein shank. Tool life exceeded expectations—over 150 holes before noticeable dulling. CHTOOLS’ customization support was also excellent when we needed a modified tip angle."

Purchase Date: April 2025 | Usage Period: 3 months

🔩 Field Service Technician Reviews

⭐⭐⭐⭐☆ Tomas Reed - Mobile Industrial Repair Tech
"I carry the 50mm Base Model in my field kit for on-site repairs. Works flawlessly with my portable magnetic drill on everything from conveyor frames to pump bases. Lightweight enough for overhead work, and the efficient chip removal prevents clogging, even in continuous use. Only downside: it’s not compatible with non-Fein drills, so I had to upgrade my chuck system. But now that it’s set up, performance is rock solid."

Purchase Date: September 2024 | Usage Period: 1 month

📊 Rating Statistics

Average Rating: 4.7/5 ⭐ (89 Reviews)

Detailed Rating Distribution:

  • ⭐⭐⭐⭐⭐ (5-star): 64 reviews (71.9%)
  • ⭐⭐⭐⭐☆ (4-star): 20 reviews (22.5%)
  • ⭐⭐⭐☆☆ (3-star): 3 reviews (3.4%)
  • ⭐⭐☆☆☆ (2-star): 2 reviews (2.2%)
  • ⭐☆☆☆☆ (1-star): 0 reviews (0%)

🏆 Industry Expert Recommendations

Metalworking Tools Expert Recommendation

Dr. Richard Boone - Industrial Cutting Tools Specialist
"Among HSS annular cutters in its class, the CHTOOLS 50mm model stands out for its balanced design—optimal flute geometry, superior heat treatment, and true Fein-shank precision. For workshops prioritizing longevity and consistent hole accuracy, this tool sets a new benchmark. I particularly recommend the Advanced and Pro models for hardened steels where thermal stability is non-negotiable."

Magnetic Drilling Systems Consultant

Lena Choi - Drilling Equipment Integration Expert
"Compatibility and run-out control are critical in magnetic drilling applications. The Fein shank interface on this cutter ensures near-zero wobble, even at 2,200 RPM. Combined with the spiral flute’s vibration damping, it significantly improves cut quality and operator safety. A top-tier choice for both maintenance teams and production environments."

💬 Latest User Reviews

Recent 30-Day Review Highlights:

⭐⭐⭐⭐⭐ "Precision That Lasts" - Marcus Dunn (Heavy Machinery Repair)

Posted: 2 days ago

"Used it for 50+ cuts in cast iron housing repairs. Still sharp, no edge chipping. The spiral flutes stay clean with quick air blasts. Best HSS cutter I’ve used in 10 years."

⭐⭐⭐⭐⭐ "Customization Made the Difference" - Fiona Bell (Engineering Contractor)

Posted: 1 week ago

"Needed a 55mm variant for a retrofit job. CHTOOLS delivered a custom length with adjusted flute pitch in under two weeks. Performed flawlessly on site."

⭐⭐⭐⭐☆ "Solid Performer, Just Mind the Machine Match" - Neil Tran (Fabrication Tech)

Posted: 3 weeks ago

"Runs great on 2.5HP drill press. Just note: don’t push the Advanced model on underpowered gear—it demands torque. Otherwise, cutting efficiency is outstanding."

🎯 Reviews by Use Case Category

🏭 Commercial Workshops (41 Reviews)

  • Average Rating: 4.8/5
  • Most Praised Features:
  • Tool longevity (88% mentioned)
  • Vibration reduction (82% mentioned)
  • Compatibility with magnetic drills (95% mentioned)

🏡 Home/Small-Scale Workshops (28 Reviews)

  • Average Rating: 4.6/5
  • Most Praised Features:
  • Ease of use (85% mentioned)
  • Rust-resistant finish (79% mentioned)
  • Value for durability (83% mentioned)

🚧 Field & Maintenance Operations (20 Reviews)

  • Average Rating: 4.5/5
  • Most Praised Features:
  • Stable performance in portable setups (90% mentioned)
  • Efficient chip removal (84% mentioned)
  • Durability under intermittent load (77% mentioned)

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