22Pcs Damaged Screw Extractor Speed Out Drill Bits Tool Set Broken Bolt Remover

The DR drill bits create a pilot hole in the damaged screw head. The matching EX extractor is then inserted into the pilot hole and turned counter-clockwise — the left-hand spiral threads bite into the screw and back it out as torque is applied. The more torque you apply, the tighter the extractor grips.

DR pieces are left-hand drill bits used to create a pilot hole in the damaged fastener head. EX pieces are the actual extractors — they are inserted into the pilot hole and turned counter-clockwise to grip and remove the fastener. Each DR and EX pair is size-matched for the same fastener diameter range.

The set covers screw diameters from 1.0mm up to 12mm across 10 extractor sizes (EX 1#–10#) and 10 matching drill bit sizes (DR 1#–10#). This range covers small electronics screws through large structural bolts.

Yes. The HSS construction and reverse-thread extraction design are effective on rusted, seized, stripped, and broken screws. For heavily corroded fasteners, applying penetrating oil and allowing it to soak before extraction generally improves results significantly.

The DR drill bits work with any standard corded or cordless drill. The EX extractors can be used with the included socket adapter and a ratchet or impact driver set to reverse, or with a drill set to reverse rotation. The extension bit holder is also included for recessed fasteners.

These screw extractors are suitable for removing damaged fasteners from wood, plastic, aluminum, and general mild steel. They are not designed for hardened alloy steel fasteners that exceed the HSS hardness rating of the extractors themselves.

Match the extractor size to the diameter of the damaged screw. Each EX extractor lists its compatible diameter range (e.g., EX 3# covers 4.0–8.0mm). Select the DR drill bit of the same number to drill the pilot hole first, then use the matching EX extractor to remove the fastener.