SP TOOLS Screw Extractor Set – Straight Type – 5pc
FEATURES
- Set Includes: 1/8”, 3/16”, 15/64”, 5/16” & 3/8”
- Remove broken studs, screws, bolts, etc
- Manufactured from heat treated chrome molybdenum steel
- Square section aids removal of extractor from screws
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- Square Screw Extractor 5 Piece Set Nos 1-5
- Chrome Molybdenum square screw extractor.
- Square screw extractors feature four sided sharp undercut edges to provide a solid grip and will not expand damaged fastener during extraction.
- They are ideally suited for removing broken bolts, studs & socket screws from medium to hard metals.
- Typically the required screw extractor will be approx. 2/3 the diameter of the fixing you are extracting.
- Use a centre punch to mark the centre of the fixing before drilling to prevent the drill bit wandering.
- Select a drill bit that is suitable for drilling into the specific material – typically HSS or HSS-Co5. Ideally the drill should be “Left Hand” which will prevent further tightening of the fixing during drilling.
- When using left hand drills ENSURE THE DRILL IS SET TO REVERSE.
- Drill pilot hole in centre of broken bolt, screw or stud.
- Lightly tap screw extractor into hole and turn anti-clockwise with a tap wrench or spanner.
- Damaged bolt, screw or stud will unwind out of the hole.
- Avoid excessive lateral loads – breakage could result.
- Wear eye and hearing protection.
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