## What size drill bit do you use for a 8-32 tap?

To Tap This Size Screw Or Bolt: Use This Drill Bit: Decimal Inches
4mm-0.75mm 3.4mm .1338
8-32 NC #29 .1360
8-36 NF #29 .1360
8-40 NS #28 .1405

## What size drill bit do you use for a 3/8 16 tap?

Most drill charts recommend a 5/16 drill for a 3/8-16 bolt.

## What is tap drill size?

a good tap drill is 90% (± 2 pp) of major diameter for fine threads. Therefore, a size 7⁄16 screw ( 7⁄16 ≈ 0.437) with 14 threads per inch (coarse) needs a tap drill with a diameter of about 0.371 inches.

## How do you determine tap drill size?

As a rule of thumb, for Metric threads, the tapping drill can be calculated by subtracting the pitch from the diameter of the thread. eg for an M5x0. 75 thread the tapping drill is 5-0.75mm = 4.25mm. For Imperial (inch) threads the tapping drill size is calculated in the same way, diameter minus pitch.

## What size is #16 drill bit?

Drill Bit Size Chart

Size Decimal Equivalent Size
69 0.0292 11/64″
.75 mm 0.0295 17
68 0.031 4.40 mm
1/32″ 0.0312 16

## What size is #30 drill bit?

We start by displaying drill bit Number 30 in decimal inches as follows: #30 drill bit = 0.1285 inches. 0.1285 decimal as a fraction is 257/2000. However, standard fractional drill bits come in intervals of 1/64 inches.

## What size is a #8 drill bit?

Drill Bit Sizes For Pre-Drilling For Screws Most Commonly Used Sizes In Bold

Screw Size Pilot hole size for hardwoods* Pilot hole size for softwood**
#5 5/64″ 1/16″
#6 3/32″ 5/64″
#7 3/32″ 5/64″
#8 1/8″ 3/32″

## What size hole do I drill for a 8mm tap?

Metric Tap and Drill Bit Size Table

Tap Metric Drill US Drill
7mm x 1.0 6.1mm 15/64″
8mm x 1.25 6.9mm 17/64″
8mm x 1.0 7.1mm
10mm x 1.5 8.7mm

## What size drill bit do I use for a 10 32 tap?

US Tap and Drill Bit Size Table

Tap Fractional Drill Bit Number Drill Bit
#10-24 5/32″ 25
#10-32 5/32″ 21
#12-24 11/64″ 16
1/4″-20 13/64″ 7

## What size is a number 32 drill bit?

Drill Bit Size Chart

Size Decimal Equivalent Decimal Equivalent
.32 mm 0.0126 1.1417
81 0.013 1.1562
80 0.0135 1.1614
.35 mm 0.0138 1.1719

## How big is a 3 / 64 tap drill?

not present TAP SIZE TAP SIZE CUTTING TAPS TRU-FLO ™ FORMING TAPS TRU-FLO ™ FORMING TAPS INCH METRIC DRILL SIZE DRILL SIZE DECIMAL EQUIVALENT 0-80 3/64 54 .0550 M1.6 X 0.35 1.25mm 1.45mm .0571 M1.8 X 0.35 1.45mm 1.65mm .0650

## How big is a standard Tru-Flo pipe drill?

pipe thread drilled hole sizes tap size cutting taps tru-flo ™ forming taps inch metric drill size decimal m30 x 3.50 26.50mm 1.0433 m30 x 2.00 28.00mm 1.1024

## How big is a 7 / 8 inch cutting tap?

not present TAP SIZE TAP SIZE CUTTING TAPS CUTTING TAPS 7/8-9 49/64 .7656 7/8 -14 13/16 .8125 M24 X 3.00 21.00mm .8268 M24 X 2.00 22.00mm .8661

## What do you use a tap drill for?

Drill and tap a variety of hole sizes. These taps and drill bits are for use on metal and plastic. Also known as gun taps, the taps in these sets have spiral-point flutes that push chips ahead of the tap and out of through holes.