25pc professional screw extractor/drill and guide set for broken studs/bolts
11 May, 2016
Fantastic tool for little money
I purchased these to remove some very large M16, 10.9 grade bolts that had sheared off in the axle of the tractor. I didn't really expect them to work but thought for the small cost I would take a chance. Well all I can say is, they are brilliant. The guides ensure you drill the centre of the bolts, the drill bits made short work of drilling into the hard 10.9 grade bolts. The knock in knurled bars went in with ease (and thankfully came out again) and they gripped the drilled bolt perfectly allowing me to screw the sheared off pieces out quickly. 10 out of 10 for quality and value for money.