KS TOOLS set da 25 estrattori viti, estrattori sinistrorsi HSS, M3-M18, con punte elicoidali e guide di foratura (150.1305)

When a bolt snaps off in an engine block or a screw head strips in a tight corner, this 25-piece screw extractor set from KS TOOLS gives you the reach and grip to pull the broken fastener cleanly. Machined from high-speed steel, the left-hand extractors bite into the damaged screw and turn it out as you reverse the drill. The set covers metric sizes from M3 to M18, so it handles everything from small electronics screws to heavy-duty automotive bolts. Packed in a robust plastic case, every extractor, drill bit, and guide stays organized and ready for the next job.

Key specifications

• Set type: Screw extractor set
• Number of pieces: 25
• Material: High-speed steel (HSS)
• Extractor type: Left-hand screw extractors
• Extractor sizes included: #1, #2, #3, #4, #5
• Extractor capacity (metric): M3 - M18
• Drill bit type: HSS left-hand twist drill bits
• Drill bit sizes included: 2.0 mm, 3.0 mm, 4.0 mm, 6.0 mm, 7.5 mm
• Drill guide sizes included: 3.2, 4.8, 6.4, 8.0, 9.5, 11.1, 12.7, 14.3, 15.9, 19.1 mm
• Drill sleeve sizes included: 3.2, 4.8, 6.4, 8.0, 9.5 mm
• Storage case material: Robust plastic
• Application: Removal of broken screws, bolts, and studs
• Fastener compatibility: Broken screws, bolts, studs
• Drill bit cutting direction: Left-hand
• Extractor drive type: Square drive

Why choose it

Left-hand extractors and matching drill bits work together to back out broken fasteners without damaging the surrounding threads. The HSS construction holds an edge through repeated use, and the included drill guides center your bit perfectly on the broken screw. With five extractor sizes and a full set of guides and sleeves, you can tackle a wide range of fastener sizes with confidence.

Ideal use cases

• Automotive repair: removing snapped bolts from engine blocks, exhaust manifolds, and suspension components.
• Machinery maintenance: extracting broken studs from housings and gearboxes.
• Plumbing and HVAC: backing out corroded screws from valves and fittings.
• General workshop: salvaging parts when a screw head is stripped or sheared off.

Good to know

The set comes in a sturdy plastic case with labeled compartments, so you can quickly find the right extractor and drill bit. Always use cutting oil when drilling into hard metals, and start with the smallest drill guide that fits over the broken fastener. The square drive on the extractors allows use with a tap wrench or socket for extra leverage.