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Drill Bit Conversion Chart -3-1-10

Drill Bit Conversion Chart Numbers & Letters Wire Gauge Drill Size Comparison Chart gauge inches mm gauge inches mm gauge inches mm gauge inches mm 80 0.0135 0.343 53 0.0595 1.511 26 0.147 3.734 A 0.234 5.944 79 0.0145 0.368 52 0.0635 1.613 25 0.1495 3.797 B 0.238 6.045 78 0.016 0.406 51 0.067 1.702 24 0.152 3.861 C 0.242 6.147

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DRILL BITS MINERAL EXPLORATION - Hole Products

Drag bits are offered in Chevron and Step types, with 3 or 4 wings and in sizes from 1 7/8" to 26". Claw bits are available in sizes from 3 1/2" to 24" and with a variety of cutter quantity options. All bits are available with a number of custom manufacturing options and any thread connection, to fi t a wide range of drilling requirements.

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Drill size chart - inch and metric | Downloadable PDF ...

9/9/2018 · Metric Drill Bit Sizes. Metric drill sizes are used primarily in Europe and use metric units to measure the drill bit diameter. There are a variety of standards used to define drill sizes, the most common one in the UK is the British Standard BS 328 set which includes twist drill bit sizes between 0.2 mm and 25 mm.

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Drill Size Conversion Chart - ICS Cutting Tools

drill size 25/64 x y 13/32 z 27/64 7/16 29/64 15/32 31/64 1/2 33/64 17/32 35/64 9/16 37/64 19/32 39/64 5/8 41/64 21/32 43/64 11/16 45/64 23/32 47/64 3/4 49/64 25/32 51/64 13/16 53/64 27/32 55/64 7/8 57/64 29/32 59/64 15/16 61/64 31/32 63/64 1 fractional sizes wire gauge sizes letter sizes 511 main street ¥ p.o. box 125 casco, wi 54205-0125 usa ph: 920-837-2526 fax: 920 …

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Drill Sizes and Conversions

Drill Sizes and Conversions Drill Sizes Conversions Numbers & Letters Fractional Metric Inch mm 2.05 0.0807 2.050 46 0.0810 2.057 45 0.0820 2.083 2.10 0.0827 2.100

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Drill Bit Size Chart - Carbide Processors

Drill Bit Size Chart. This chart shows decimal inch equivalents for fractional inch, wire size, letter size and metric drill bits up to two inches in diameter. Size Decimal Equivalent Size Decimal Equivalent Size Decimal Equivalent Size Decimal Equivalent; 97: 0.0059 : 2.60 mm: 0.1024 : M: 0.295 : 63/64" 0.9844: 96: 0.0063 : 37: 0.104 : 7.50 mm:

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List of Drill Bit and Tap Sizes - Drill Size Chart and Tap ...

Metric drill bit sizes: diameter of the bit in terms of standard metric lengths. Letter drill bit sizes: the sizes are indicated in letters, from size A (the smallest) to size Z (the largest). Number drill bit sizes: the sizes are indicated in numbers, range from size 80 (the smallest) to size 1 (the largest).Number and letter sizes are commonly used for twist drill bits rather than other ...

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Drill Bit Sizes - Sharpening Handbook

Drill Bit Sizes 0.0330 66 0.1730 17 0.5469 35/64 0.0335 0.85 0.1770 16 0.5512 14 0.0350 65 0.1772 4.5 0.5625 9/16 0.0354 0.9 0.1800 15 0.5709 14.5 0.0360 64 0.1820 14 0.5781 37/64 0.0370 63 0.1850 13 0.5905 15 0.0374 0.95 0.1875 3/16 0.5938 19/32 0.0380 62 0.1890 12 0.6094 39/64 0 ...

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ROTARY DRILLING BITS AND DRILL STRING TOOLS

operating hours, our engineers have applied a systems approach to the drill bit tech-nology. Additional features are present on these bits to maximize life and operational penetration rates in challenging environments. BIT SIZE mm inch APPROX. WT. kg / lb X05 X07 X10 X20 X30 X40 X47 X50 X60 X70 159 6 ¼" 20 / 44 X 171 6 ¾" 22 / 49 X X X X

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TAPPING DRILL SIZES - Prescott Engineering

TAPPING DRILL SIZES IMPERIAL THREADS Tap Size B.S Whit U.N.F U.N.C B.S.F B.S.P B.A Drill Size Drill Size Drill Size Drill Size Drill Size Tap Size Drill Size 1/16 1.1mm 0 5.1mm 3/32 1.8mm 1/8 2.5mm 11/32 1 4.5mm 5/32 2.9mm 1/8 3/16 3.7mm 5/32 2 5/32 7/32 4.2mm 4.4mm

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Inch and Metric Drill Bit Size Chart - Abbott Aerospace ...

8/3/2021 · Fractional and Metric Sizes ref. ANSI/ASME B94.11M-1993 Posted in Reference Data , What's New Tagged ANSI , bit size , Drills , ISO 2 …

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TAPPING DRILL SIZES - Prescott Engineering

TAPPING DRILL SIZES IMPERIAL THREADS Tap Size B.S Whit U.N.F U.N.C B.S.F B.S.P B.A Drill Size Drill Size Drill Size Drill Size Drill Size Tap Size Drill Size 1/16 1.1mm 0 5.1mm 3/32 1.8mm 1/8 2.5mm 11/32 1 4.5mm 5/32 2.9mm 1/8 3/16 3.7mm 5/32 2 5/32 7 ...

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DRILL BIT RPM CHART - Imperial Supplies

135° Bits are intended for hardened materials and cut less . aggressively than 118° Drill Bits. 118° bits are used for soft materials

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Drill Size Chart for Number and Letter Gauges

Centre Drill Bit Sizes These specialist drill bits are used for drilling centreholes at two different angles, 60 degrees and90 degrees. They are commonly used to drill lathe centres and spotting drills, i.e.marking holes to guide twist drilling. The drill size chart below contains all commonly used centre drill bit sizes. Size designation Drill diameter [inches (mm)]

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TAP DRILL SIZES - INCH & METRIC with DRILL SIZE FORMULAS

Drill sizes given are the ‘closest’ drill size. TAP DRILL SIZES - INCH & METRIC with DRILL SIZE FORMULAS (cont.) ENGINEERING DATA. THREADS PER INCH DOUBLE THREAD DEPTH 50% THREAD 55% THREAD 60% THREAD RECOMMENDED RANGE 80% THREAD 85% THREAD 65% THREAD 70% THREAD 75% THREAD 6 .21651 .1083 .1192 .1300 .1408 …

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Drill Nomenclature and Geometry - NEMES

Drill Nomenclature-Points• Elements of Drill Points • Lip Relief Angle – Varies with the diameter of the drill and hardness of the material – On larger diameters and drills for harder materials, lip relief is decreased to as low as 8° – Drills for soft materials and small diameters have high relief angles up to 24° – Lip relief angles are measured across the margin

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Inch/MetrIc tap DrIll SIzeS & DecIMal equIvalentS

Drill Size Decimal eQUiValeNT Tap Size 19 39 32 .5938 64 5 .6094 41 8 .6250 64 21 .6406 43 32 .6562 3/4 - 10 64 11 .6719 45 16 .6875 3/4 - 16 64 23 .7031 47 32 .7188 64 3 .7344

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Common Drill Sizes Chart - University of Florida

In general, there are 3 categories of common imperial drill sizes: fractional (in 1/64" increments), lettered (A-Z), and numbered (1-80). Generated by: K. Brooker

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NPT & NPTF NPS & NPSF Drill Size* Pitch Drill Size (TPI ...

Tap Drill Charts | National Pipe Threads NPT & NPTF NPS & NPSF Pipe Tap Size Pitch (TPI) Drill Size* (inch) Pitch (TPI) Drill Size (inch) 1/16 27 0.242 (C) - - 1/8 27 0.332 (Q) 27 0.348 (S)

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DRILL BIT RPM CHART - Imperial Supplies

- When drilling hardwood floor boards for trailers, it is recommended that the RPM's and speed of feed is reduced. Reasoning for this is hardness of material and depth of hole being cut. - If using a 5/16" drill bit that will drill through 1-3/8" hardwood board, the recommended rate of …

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23 Printable Tap Drill Charts [PDF] ᐅ TemplateLab

23 Printable Tap Drill Charts [PDF] A drill and tap chart is what specifies the right size of drill bit that one can use to create the correct sized opening that would complement tap dimensions. A tap drill chart is key in matching pairs of and male thread that tightly secure together. Often it is the corresponding dies and taps that you ...