Disston Company 136736 Hss Screw Extractor Set 4 Piece

Product Description

The DISSTON COMPANY 136736 is a 4-piece high-speed steel (HSS) screw extractor set designed to remove broken, stripped, or seized fasteners from metal, wood, and composite materials. The set includes extractors sized 1, 2, 3, and 4, covering a range of common fastener diameters encountered in mechanical, plumbing, HVAC, and electrical service work. HSS construction provides the hardness needed to bite into damaged fastener heads and back them out without shattering under torque. This set is a standard addition to a service technician's drill-and-extract kit for field or shop use.

This extractor set is suited for residential and light commercial service applications where broken bolts, studs, screws, or pipe nipples need to be removed without damaging the surrounding material or threads. Typical use cases include extracting snapped machine screws in equipment panels, removing broken studs in flanges, and recovering seized fasteners during equipment changeouts. The four-piece range makes it practical for general trade use across HVAC, plumbing, and electrical disciplines.

Key Features

• High-speed steel (HSS) construction for hardness and durability under extraction torque
• 4-piece set includes extractor sizes 1, 2, 3, and 4 for a range of fastener diameters
• Left-hand spiral flute design typical of screw extractors bites into damaged fastener heads as torque is applied
• Compact set dimensions of approximately 8.66 inches long by 5.63 inches wide for easy storage in a tool bag or box
• Lightweight at 0.22 pounds for the extractors, making it practical for field carry

Compatibility

Designed as a general-purpose screw extractor set compatible with standard drill press and hand drill setups used across mechanical and trade service applications.

Installation Notes

Screw extractor use is typically performed by licensed mechanics, HVAC technicians, plumbers, and electricians as part of fastener recovery during equipment service or replacement. Before beginning extraction, de-energize or shut off the equipment being serviced per applicable safety codes. Use a left-hand drill bit to create a pilot hole in the center of the broken fastener before seating the extractor, and apply steady, controlled torque to avoid snapping the extractor in the hole. Broken extractors are harder than most drill bits and are extremely difficult to remove, so avoid excessive force.