Features: Remove Broken Or Damaged Screws, Bolts And Fasteners Effortlessly. Suitable For Removing All Available Terms Such As Bolts, Screws And Studs Ranging In Diameter From 4Mm To 3Mm. 25Mm. Delivered; In A Storage Box With 12 Pieces: 6 Pieces For The Screw Extractors And Another 6 Pieces For The Drills. Very Convenient And Practical To Set Up All These Tools And Carry Them Anywhere. This Broken Screw Extractor Kit Is Made; Made Of High Quality Material, Durable Enough For Outdoor Use. Long Term. These Extractors Will Remove Most Types Of Screws That Are Damaged, Stripped, Rusted, Broken Or Stuck. Whether You Are A Professional Or An Amateur, You All Can Keep Such A Set Of Tools At Your Disposal. The House In Case Of Necessary Situation. Specification: Material: Steel Color: Shown As Pictures Drill Sizes: 3/32", 1/8", 3/16", 1/4", 5/16", 3/8" Screw Extractors (6Pcs): #1 (Dia: 4.0Mm/0.15") For 4-6Mm/0.15-0.23" #2 (Dia: 4 .5Mm/0.17") For 6-8Mm/0.23-0.31" #3 (Diameter: 6.5Mm/0.25") For 8-11Mm/0.31- 0.43" #4 (Diameter: 7.5Mm/0.29") For 11-14Mm/0.43-0.55" #5 (Diameter: 11.0Mm/0.43 ") For 14-18Mm/0.55-0.70" #6 (Diameter: 15.0Mm/0.59") For 18-25Mm/0.70-0.98" Storage Box Size: Approx. 19X10X4.5Cm/7.48X3.93X1.77" Weight: Approx. 410G Packing List: 1 X 6Pcs Screw Extractors 1 X 6Pcs Drill Bits 1 X Plastic Storage Box