Choose from our selection of 7/8"-14 taps, including general purpose taps, tap sets, and more. Same and Next Day Delivery.

The tap size chart provides a list of standard size taps, specifying the diameter and thread spacing, for fractional, metric, and screw sizes. The decimal equivalents of the diameters are shown in both English and Metric units. Fractional sizes are listed in inches, while metric sizes are listed in millimeters following the letter "M".

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Our tiniest taps cut threads in electronics and small precision instruments. No tap wrench needed—just snap into a bit screwdriver. Start threading a hole with one end of these taps and finish it with the other. A variety of taps for threading holes so screws, bolts, and rods fit snugly.

Hand threading tap is the most versatile taps for hand use or for tapping under power; Hand threading tap is popular for use in general machine tapping or CNC tapping; Also appropriate for tapping the vast majority of materials in through or blind holed conditions; Tap set includes 1 of each: taper tap, plug tap and bottoming tap

When it comes to 7/8"-14 Taps & Internal Threading Tools, you can count on Grainger. Supplies and solutions for every industry, plus easy ordering, fast delivery and 24/7 customer support.

We are professional 7/8-18 UNS tap-7/8"-18 UNS thread tap-HSS bottom lead tap supplier, each tap 100% tested with quality assurance. Straight-flute taps, spiral-point taps, and spiral flute taps available.

The plug style tap is the most commonly used style of tap with 3 to 5 threads chamfered; Best drill: 13/16″ Use with Cutting Oil when cutting threads in metal.