22-Piece Raw Steel Broken Screw Out Kit | Zero-Coating Maximum Bite (Sizes 1-10)

Product Specification

1. Problem: The "Coating Compromise" and Micro-Slippage

• The Problem: When extracting a deeply seized, hardened machine screw or a microscopic laptop screw, you only get one chance. If the extractor slips, it destroys the remaining metal, making extraction impossible. Many extractors use thick cosmetic or thermal coatings. While coatings look great and resist heat, they physically fill in and "round off" the microscopic cutting edges of the reverse threads. When dealing with severely cammed-out recesses, these dulled edges slip and spin instead of biting.

• The Result: Total extraction failure, destroyed fasteners, and the eventual need to expensively drill out the entire threaded housing or replace the component.

2. Cause: Micron-Level Edge Dulling

• Coating Thickness: Any chemical plating (even premium Titanium) adds a layer of material measured in microns. On an ultra-fine 1.5mm micro-extractor, adding a 5-micron coating dulls the razor-sharp peak of the thread.

• Tool Compromise: Double-ended extractors combined with thick coatings sacrifice pure, aggressive biting force for manufacturing convenience and aesthetics.

3. Solution: "Raw Edge" Steel and Independent Operations

• Uncoated "Raw Edge" Sharpness: This 22-piece system completely abandons all coatings. Manufactured with a "Bright Finish," the pure High-Speed Steel (HSS 4341) is left exposed. This ensures that the precision CNC-milled reverse threads remain absolutely razor-sharp. It guarantees a violent, instant bite into the hardest stripped screws, refusing to slip even under extreme reverse torque.

• Independent Drill & Extract Architecture: By separating the burnishing drills (Dr#1-10) from the extractors (Ex#1-10), each tool is structurally uncompromised. You drill the perfect pilot hole with a dedicated bit, then extract with a dedicated razor-sharp thread.

• The Complete 22-Piece Matrix: Divided into two shank platforms. The heavy 6.35mm (1/4") bits crush large automotive bolts, while the 4.00mm bits act as surgical instruments for stripped electronics. The included Socket Adapter seamlessly integrates the micro-bits into standard 1/4" power tools.

4. Technical Specifications.

5. Professional Industry Applications

• Hardened Bolt Extraction: The raw, aggressive bite is the ultimate solution for extracting seized engine block bolts, rusted suspension hardware, and hardened machine screws where coated bits slip.

• Surgical Electronics Repair: The uncoated 4.00mm micro-extractors (Ex#10) effortlessly grab microscopic 1.3mm stripped screws from smartphones, drone gimbals, and luxury watch cases without rounding them further.

• Fine Woodworking: Backing out snapped brass hinges and antique furniture screws cleanly without splintering the surrounding expensive wood grain.

6. Operation and Safety Guidelines

• Cutting Fluid is Mandatory: Because these bits do not have a thermal coating, you must use a drop of cutting oil or WD-40 when drilling the pilot hole. This prevents the raw HSS steel from overheating and losing its temper during the burnishing phase.

• Low Speed, High Pressure: Set your drill to REVERSE. Use the absolute slowest speed setting possible. High RPMs will only melt the bit. Rely on heavy downward body pressure to let the sharp, uncoated threads carve into the damaged metal.

• Rust Prevention Maintenance: Uncoated raw steel is highly susceptible to rust if stored in damp conditions. After use, wipe the bits clean and apply a very light coat of machine oil before placing them back in the storage case.

7. FAQ: Expert Technical Support

Q: Should I buy this Uncoated set or the Titanium-Coated set?

A: It is a trade-off. Buy the Titanium-Coated set if you are drilling into very thick, hard metals where heat friction is your biggest enemy (the coating protects the bit from burning up). Buy this Uncoated set if your biggest problem is extractors slipping out of the hole. Uncoated steel provides the absolute sharpest, most aggressive bite possible.

Q: Why does the kit use two different shank sizes (6.35mm and 4.00mm)?

A: You cannot effectively extract a microscopic 1.5mm smartphone screw using a bulky, heavy 1/4" (6.35mm) hex shank—it causes too much wobble and obscures your vision. The 4.00mm platform provides surgical precision for tiny screws, while the 6.35mm platform provides the brute strength needed for large lag bolts.

Q: How do I use the tiny 4.00mm bits in my standard drill?

A: The kit includes a silver Socket Adapter. Simply slide the 4.00mm micro-bit into the adapter, which converts the base to a standard 6.35mm (1/4") hex shank. You can then chuck it directly into your power drill or use the included magnetic extension holder.