10-Piece Screw Extractor & Left-Cutting Drill Set

Brief Overview

This 10-piece set combines left-cutting drill bits and helical-groove extractors to tackle one of the most common shop problems: removing broken bolts, studs, and damaged fasteners. Pair this with larger formats like our heavy-duty bolt extractor socket sets for comprehensive shop coverage across all fastener sizes.

The set delivers a complete solution for the removal workflow: drill precisely with left-hand bits, then extract with aggressive spiral grooves that bite deeper as rotation continues. Built for professional mechanics, maintenance technicians, and workshop environments where broken fasteners are inevitable.

Key Features

• Left-Hand Drill Bits: HSS 4241 high-speed steel construction, gold titanium-coated for durability and heat resistance
• Helical-Groove Extractors: Silver-finished spiral extractors that automatically bite deeper during counterclockwise rotation—prevents slipping and reduces rounding risk
• Five Size Pairs: 2mm (5/64"), 2.8mm (7/64"), 4mm (5/32"), 6.4mm (1/4"), 7.5mm (19/64")
• Organized Storage Case: Triangular blue plastic case with labeled black holder and dedicated slots for each bit
• Portable Design: Hinged case with hanging tab makes transport and job-site setup straightforward

How It Works

The extraction process is straightforward and proven:

1. Drill: Use the left-hand drill bit (sized to match your broken fastener) to create a pilot hole
2. Insert: Place the corresponding extractor into the hole
3. Rotate: Turn counterclockwise—the helical grooves grip and extract the broken bolt
4. Assist: Apply rust remover, penetrating oil, or grease for severely corroded fasteners

Left-hand rotation is critical: it leverages the drill's natural tendency to reverse-spin if resistance is encountered, helping drive the extractor deeper into the broken bolt rather than further damaging it.

Business Advantages for Resellers

• Essential Shop Tool: High repeat-purchase potential—broken fasteners are unavoidable in maintenance and repair work
• Compact, Professional Presentation: The triangular case is eye-catching and retail-ready; suitable for both counter display and technician tool kits
• Competitive Pricing: Offers real value without premium positioning—attracts budget-conscious shops and independent mechanics
• Training Opportunity: Educate customers on proper extraction technique; establishes you as a technical resource

Technical Specifications

Specification	Details
Drill Bit Material	HSS 4241 high-speed steel, titanium nitride coated
Extractor Finish	Silver spiral, left-hand helical groove
Size Range	2mm, 2.8mm, 4mm, 6.4mm, 7.5mm (metric & fractional equivalents provided)
Set Contents	5 left-cutting drill bits + 5 spiral extractors
Case Material	Durable blue plastic, triangular format with hinged lid
Storage	Labeled black holder with numbered slots; lower storage tray
Portability	Compact, hangtab feature for easy transport

Why This Set Stands Out

The HSS 4241 material is industry-standard for extractors because it balances hardness with enough toughness to resist breaking under the rotational stress of extraction. The titanium nitride coating on drills extends bit life, especially when drilling through hardened steel fasteners.

The helical groove design—visible in the silver twisted profile—is the mechanical key: as you rotate counterclockwise, the grooves self-engage, biting progressively deeper without requiring manual pressure. This reduces operator fatigue and lowers the risk of extractor breakage.

Left-hand rotation also addresses the physics problem: if the fastener begins to spin in the same direction as your drill, the left-hand design naturally resists that motion, keeping the bit or extractor seated in the hole.

Ideal Applications

• Automotive repair shops (engine block studs, suspension bolts)
• Industrial maintenance and shutdown procedures
• Plumbing and HVAC (threaded fittings and unions)
• Equipment maintenance and overhaul operations
• Tool kits for field service technicians

Closing Note

Broken fasteners cost time and money. This 10-piece set reduces both by providing the correct tools for the most common fastener sizes. Stock it confidently knowing it addresses a genuine, recurring customer need—and one that justifies repeat orders.