VEVOR Tap and Die Set, 60-Piece Metric and SAE Sizes M3 to M12, #4 to 1/2", with Coarse and Fine Thread Taps and Dies, Wrench, Carrying Case and Complete Accessories, for Threading and Rethreading

SAE and Metric Tap and Die Set with 60 Pieces Covering M3–M12 and 4–1/2" Sizes 

There are 60 pieces in the VEVOR SAE and metric tap and die set, ranging from M3 to M12 metric sizes and from #4 to 1/2 inch SAE sizes. These sizes cover all thread-cutting and repair needs for both metric fasteners used in imported vehicles and machinery, as well as SAE sizes common in North American vehicles, farms, and construction sites. A single set covers both metric and SAE systems. 

The set includes both coarse and fine thread sizes across the SAE and metric ranges, making it suitable for general thread cutting, thread repair, and maintenance work. A single complete SAE and metric tap-and-die set that covers both systems is a better buy than two separate partial sets for places like home workshops, garages, and job sites where storage space and budget are important.

High-Carbon Chrome Bearing Steel at 58–62 HRC for Professional-Grade Hardness 

High-carbon chrome bearing steel is used to make the taps and dies in this set. This type of steel is better than the standard carbon steel used in cheaper tap-and-die sets. Through heat treatment, high-carbon chrome bearing steel can become harder than standard carbon steel. Heat treatment gives the tools a hardness of 58–62 HRC. When the hardness is this high, the cutting edges of the taps and dies stay sharp much longer before needing replacement, which would not happen with softer options.

The hardness range for professional-grade cutting tools is between 58 and 62 HRC. This range is hard enough to cut through materials cleanly without the cutting edge rolling or chipping under load, but tough enough to avoid the brittle fracture that would occur if the hardness crossed this range. The chromium content also improves corrosion resistance. This means that individual pieces will last longer between uses in workshops where humidity and coolant are common.

Heat Treatment at 1472°F for Superior Cutting Stability and Long-Term Wear Resistance 

The tools are heat-treated at approximately 1472°F (800°C), helping achieve their 58–62 HRC hardness. The heat treatment process develops the hardness needed for thread cutting. If the same steel were not heat-treated correctly, tools made from it would not perform nearly as well as they could.

Heat treatment also improves wear resistance, helping the cutting edges maintain their shape during repeated use. This slows the rate at which the cutting flutes and die threads lose their shape when used repeatedly on hard materials. With the right heat treatment, high-carbon chrome steel can last for years of use by mechanics and fabricators who use their tap and die set daily with a variety of materials and thread sizes.

Coarse, Fine, and NPT Thread Taps and Dies for Full Threading Application Coverage 

This set includes coarse-thread, fine-thread, and NPT (National Pipe Taper) taps, along with the corresponding dies, providing three distinct thread forms in a single kit. For most general fastener uses, such as standard bolts, machine screws, and structural fasteners, coarse-thread taps and dies are what you need. This is because coarse pitch is the usual thread specification. Fine-thread taps and dies are suitable where greater thread engagement or improved holding strength is required. 

When used with tapered thread profiles to form pressure-tight seals at fitting joints, the NPT taps expand the set’s applications to include pipe fittings and fluid systems. With three types of threads, coarse, fine, and NPT, in a single 60-piece purchase, this set can handle more threading tasks than sets with only coarse and fine threads at the same piece count. This makes it more useful for auto repair shops and maintenance shops that do more than just standard fastener work.

SAE and Metric Tap and Die Set with Thread Pitch Gauge and Complete Auxiliary Tools 

This SAE and metric tap and die set includes a full set of extra tools in addition to the taps and dies. These include an adjustable wrench, a T-handle tap wrench with a knurled non-slip grip, an adjustable die stock, a thread pitch gauge that works with both SAE and metric standards, and a flat-head screwdriver. The thread pitch gauge helps identify unknown thread sizes before selecting the correct tap or die. This keeps the user from damaging the thread when they try to cut it with the wrong thread pitch.

The T-handle tap wrench lets you start taps squarely in the workpiece with controlled, low-torque input. This helps reduce the risk of tap breakage that happens when a tap hits the material at an angle. The set comes with a range of dies with different outer diameters. The adjustable die stock has a single holder that fits all these dies, so you do not have to buy separate handles for each size.

Compatible with Six Metal Types Including Stainless Steel, Aluminum, and Cast Iron 

This SAE and metric tap and die set can cut or restore threads on carbon steel, cast iron, aluminum alloys, brass, copper, and stainless steel. This means you can use it on all the metals you might find in an auto shop, a manufacturing shop, or just around the house. The 58–62 HRC hardness helps the cutting edges maintain performance across a variety of common metals. 

The set comes in a PE storage case measuring 12.40 × 7.87 × 1.77 in, with organized compartments that make it easy to see and retrieve each tap and die without sifting through loose pieces. Stamped size markings on each tool make it easy to find the right size while working without consulting a size chart. The complete kit weighs 3.97 lbs, making it easy to carry between the workshop and job site.