SKU: 88710
10 Piece Screw Extractor & Left Hand Drill Bit Set
- Left hand drill bits are made from M53 cobalt steel at a "stubby" mechanics length for additional strength.
- Screw extractors are used when a screw or bolt has broken off while still in the fastening hole.
- Set includes: 5/64", 7/64", 5/32", 1/4", and 19/64" left hand drill bits, and #1, #2, #3, #4, and #5 spiral screw extractors.
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Money we'll spent!! Took some force to turn it. But did not break and got the job done. Highly recommend!! 👍💯💯
Nice to have on hand
I took a shot at these hoping for the best. When arrived, it said made in China, so I was worried. I had a 7/16-inch grade 8 bolt holding an electric PTO clutch on the engine crankshaft of a John Deere X540 riding mower. The bolt broke off about 1/8-inch up inside the crankshaft. I used the 7/64-inch bit first and it drilled well. I peck drilled, going a little at a time, drilling slowly to not create much heat and went in about 1/2 of an inch. Then I used the 1/4-inch drill bit, setting up for the bolt extractor. Just as the 1/4-inch drill bit caught a good bite, it walked the remaining bolt, 3/4 inch long, right out of the crankshaft. Glad to say these worked well and even on a grade 8 bolt. They do have 5% cobalt steel in them. Thank you for a product that actually works.