About This 【High-quality Industrial-grade Material】 Made of heat-treated high-quality hardness CR-MO (chrome-molybdenum) steel & HSS (high-speed steel) for superior durability with Titanium Nitride coating provides higher wear resistance, and the ability to withstand higher temperatures. Engineered for high torque output without expansion to prevent breaking or jamming. 【55pcs Multifunctional Screw & Bolt Puller Set】16 high-speed steel drill bits size:（5/64", 7/64", 1/8", 5/32", 3/16", 7/32", 1/4", 19/64", 9/32", 5/16", 11/32", 3/8", 13/32", 7/16", 15/32", 1/2"). 13 multi spline extractors size：(1/8", 5/32", 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 13/32", 7/16", 15/32", /2"). 10 drill bit guide bits: (G1 to G10). 6 spiral screw extractors: (NO.1 to NO.6). 5 extractor pins: (#1 to #5). 5 nut extractors: (#1 to #5). 【Wide Range of Applications】All the multi-spline extractors are precision engineered to easily remove seized, broken studs, bolts, socket screws, and fittings. The drill bit guide and long extractor pins are for hard-to-reach and tight areas. Fit where others won't and can't. 【Superior Gripping Power】The aggressive left-hand design creates extra gripping power. Easy-out style spiral flutes embed themselves to increase grip as resistance increases. Make complicated things simple, save time on repairs at the mechanic, and improve efficiency at the same time. 【Assurance】Best in-category warranty! Break a single socket? Don’t send back your whole set and wait on a replacement for weeks. We pride ourselves on quick and efficient replacements by sending out just an email via Amazon with a picture of the broken socket. So incredible.
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