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Westward #7 spiral-flute screw extractor, square-drive steel body

Westward

Westward Screw Extractor #7 Spiral Flute 39/64 in Drill Size

SKU CH-2P93-Y72K2

Removes broken right-hand bolts from 1-1/8 to 1-1/2 in using a 39/64 in drill and 0.709 in square drive

  • Product typeAlignment Tools
  • Spiral flute design grips broken bolts securely
  • 39/64 in drill size matches 1-1/8 to 1-1/2 in bolts
  • High-speed steel construction resists wear during extraction
  • 709 in square drive fits standard wrenches
  • 4 1/8 in overall length reaches deep fasteners

Screw Extractor #7 for Large Bolts

This Westward spiral-flute extractor removes right-hand threaded bolts from 1-1/8 to 1-1/2 inches. It is machined from high-speed steel for hardness and wear resistance. The square drive measures 0.709 inches for use with a wrench or tap handle. Overall length is 4 1/8 inches.

Drill Size and Bolt Range Limits

The tool requires a 39/64 inch pilot hole drilled into the broken fastener. It only fits bolts within the stated 1-1/8 to 1-1/2 inch diameter range. Smaller or larger bolts need a different extractor number. Left-hand threaded fasteners cannot be removed with this right-hand spiral design.

Spiral Flute Geometry Determines Fit

The #7 spiral flute configuration is the single specification that matches this extractor to the bolt size and drill diameter listed. Using the correct extractor number prevents further damage to the workpiece. Buyers who need a different bolt range or left-hand thread removal must select another tool.

How it compares

Measured against everything we stock in Utility & Specialty Hand Tools, at today’s prices. Recalculated every night.

Price $4.99
Cheaper than about 93% of the 2,474 comparable items (median $23.99).

Specifications

Product
Brand nameWestward
Product typeAlignment Tools

Questions about this item

Should I choose the #7 spiral-flute extractor or a different size for a 1-1/8 to 1-1/2 bolt?

The #7 spiral-flute extractor is made for bolts from 1-1/8 to 1-1/2 and uses a 39/64 in drill size, so match it to that bolt range.

What does the 39/64 in drill size mean when I use the extractor in a real job?

Drill a 39/64 in hole in the broken fastener, then drive the extractor with its square drive to grip and back the bolt out.

How does the 0.709 in square drive limit the tools I can use with this extractor?

The 0.709 in square drive fits a matching tap wrench or socket, so you need a driver with that exact square opening.

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