,Fraction and decimal chart for drilling all materials Advantage Drills Inc.; 

Advantage Drills Incorperated. Drill bits and cutting toolsAdvantage Drills Incorporated
Phone: 407-478-BITS (2487)
Fax: 407-678-7414
sales@advantagedrills.com
Over 31 Years
Manufacturing and Distributing
Quality Drill Bits
and all Cutting Tools.
World Wide.
drill bits, cobalt,carbide,woodworking,masonry,tile,stone,concrete drill bits
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If it's Manufactured, We'll Have it, or Manufacture it for you!   All Tooling : AMERICAN MANUFACTURED, MADE IN USA !
Custom and Standard Quality American Manufactured Tooling, for all Applications Large or Small. Specialists for Specific Needs and Tooling.


Hss drill bits,M-1,M-2 and all other steel cuttng tools
end mills carbide,cobalt Hss
HSS Twist Drill Bits
(m-1,m-2,m-7)
metal working Tooling
Micro, Metric, Fractional,
number, letter
tapered, extra long,
over sized,
All Metal Working Tooling
and custom needs

carbide and cobalt drilla and cutting tools
Cobalt/Carbide
Drill bits and Tooling.
micro, Letter, Number,
Fractional, Metric, specials

chucking,pin,hand, taperes,construction reamers
Reamers
Core Drills,
Counter Sinks
custom needs

Diamond core drills metal bonded, brazed,plated
Diamond core drills
Glass Porcelain
Ceramic, Tile
router-jig-finishing Tooling Custom design and mfg specials. Metal bonded, plated braze bonded


Diamond routers. brazed,plated metal bonded
Diamond Drill Bits
Carbon Composite
Stone Cutting Tooling
micro, core, router, pads,
disks, cnc, pcd,
plated, brazed,
metal bond routers
finger bits, drums.

Pneumatic drill motors demolition, masonry,concrete
Hydraulic drill motors masonry/concrete,demolition
Pneumatic
Hydraulic
Electric
Drill Motors
And Accessories


Magnetic protable drill machines
Portable Magnetic Drills


sds plus,sdsmas,spline, hammer,a & b taper masonry drill
Masonry
Drill Bits
Chisels' sds, spline,
A & B taper, Hammer,
extra long drills
custom Milled & designed

CONCRETE
 Drill Bits


Carbide tip Masonry,concrete core drills
Concrete Drill Bits
and tooling
Asphalt Drills SDS, A&B Taper, Spline, Standard, Ratio.
custom designed

Diamond core drills wet and dry
Diamond concrete,asphault, and masonry blades

Diamond Cores
wet & dry
saw blades
core rigs

Hurricane Anchor Drills

Fusebar Reamers


Multi spur 2,3 wing carbide bore bitsCarbide tip Borring boits for bore machines

Fiberglass, Plastics

Cutting tools for all woodworking
Carbide and Hss Router bits for all applications

Wood Working
Drills Bits -Tooling
step drills
plexi point
counter bores
plug cutters
Router bits,
Forstner Bits
Hole saw
Saw blades carbide


Tenon cutters all sizes
Tenon cutters


Brad Point bits forll woo,d fiberglass,Composite,
Brad Point Drill Bits

carbide tip wood augers for treated timbers
Wood Augers Treated Timbers
sea walls
log home const.
glulam
epée,
Brazilian hard Woods
bridge construction
Utilities, all Treated timbers


Carbide tip timber counter bores and auger

Timber Drills
Counter Bores
Counter Sinks
utility poles
Fiberglass poles
R/R ties
wood core
special mfg needs

 

USA Shipping Information

Hss & Cobalt Special Pricing


maintenance welding alloy
Maintenance Welding
Alloy Steel, Cast Iron,
Aluminum, Steel
Brass, High Strength low temp Moisture resistant!


Fractional-Decimal Convergence Chart

Drill  Bit Feed and Speed Chart



Convert Fractions to Decimals and Millimeters

1 INCH = 25.4 MM EXACTLY

To convert fractions to decimals multiply by .039375

FractionDecimalMMFractionDecimalMMFractionDecimalMM
1/640.01560.39691 1/641.015625.79692 1/642.015651.1969
1/320.03130.79381 1/321.031326.19382 1/322.031351.5938
3/640.04691.19061 3/641.046926.59062 3/642.046951.9906
1/160.06251.58751 1/161.062526.98752 1/162.062552.3875
5/640.07811.98441 5/641.078127.38442 5/642.078152.7844
3/320.09382.38131 3/321.093827.78132 3/322.093853.1813
7/640.10942.77811 7/641.109428.17812 7/642.109453.5781
1/8 0.12503.17501 1/8 1.125028.57502 1/8 2.125053.9750
9/640.14063.57191 9/641.140628.97192 9/642.140654.3719
5/320.15633.96881 5/321.156329.36882 5/322.156354.7688
11/640.17194.36561 11/641.171929.76562 11/642.171955.1656
3/160.18754.76251 3/161.187530.16252 3/162.187555.5625
13/640.20315.15941 13/641.203130.55942 13/642.203155.9594
7/320.21885.55631 7/321.218830.95632 7/322.218856.3563
15/640.23445.95311 15/641.234431.35312 15/642.234456.7531
1/4 0.25006.35001 1/4 1.250031.75002 1/4 2.250057.1500
17/640.26566.74691 17/641.265632.14692 17/642.265657.5469
9/320.28137.14381 9/321.281332.54382 9/322.281357.9438
19/640.29697.54061 19/641.296932.94062 19/642.296958.3406
5/160.31257.93751 5/161.312533.33752 5/162.312558.7375
21/640.32818.33441 21/641.328133.73442 21/642.328159.1344
11/320.34388.73131 11/321.343834.13132 11/322.343859.5313
23/640.35949.12811 23/641.359434.52812 23/642.359459.9281
3/8 0.37509.52501 3/8 1.375034.92502 3/8 2.375060.3250
25/640.39069.92191 25/641.390635.32192 25/642.390660.7219
13/320.406310.31881 13/321.406335.71882 13/322.406361.1188
27/640.421910.71561 27/641.421936.11562 27/642.421961.5156
7/160.437511.11251 7/161.437536.51252 7/162.437561.9125
29/640.453111.50941 29/641.453136.90942 29/642.453162.3094
15/320.468811.90631 15/321.468837.30632 15/322.468862.7063
31/640.484412.30311 31/641.484437.70312 31/642.484463.1031
1/2 0.500012.70001 1/2 1.500038.10002 1/2 2.500063.5000
33/640.515613.09691 33/641.515638.49692 33/642.515663.8969
17/320.531313.49381 17/321.531338.89382 17/322.531364.2938
35/640.546913.89061 35/641.546939.29062 35/642.546964.6906
9/160.562514.28751 9/161.562539.68752 9/162.562565.0875
37/640.578114.68441 37/641.578140.08442 37/642.578165.4844
19/320.593815.08131 19/321.593840.48132 19/322.593865.8813
39/640.609415.47811 39/641.609440.87812 39/642.609466.2781
5/8 0.625015.87501 5/8 1.625041.27502 5/8 2.625066.6750
41/640.640616.27191 41/641.640641.67192 41/642.640667.0719
21/320.656316.66881 21/321.656342.06882 21/322.656367.4688
43/640.671917.06561 43/641.671942.46562 43/642.671967.8656
11/160.687517.46251 11/161.687542.86252 11/162.687568.2625
45/640.703117.85941 45/641.703143.25942 45/642.703168.6594
23/320.718818.25631 23/321.718843.65632 23/322.718869.0563
47/640.734418.65311 47/641.734444.05312 47/642.734469.4531
3/4 0.750019.05001 3/4 1.750044.45002 3/4 2.750069.8500
49/640.765619.44691 49/641.765644.84692 49/642.765670.2469
25/320.781319.84381 25/321.781345.24382 25/322.781370.6438
51/640.796920.24061 51/641.796945.64062 51/642.796971.0406
13/160.812520.63751 13/161.812546.03752 13/162.812571.4375
53/640.828121.03441 53/641.828146.43442 53/642.828171.8344
27/320.843821.43131 27/321.843846.83132 27/322.843872.2313
55/640.859421.82811 55/641.859447.22812 55/642.859472.6281
7/8 0.875022.22501 7/8 1.875047.62502 7/8 2.875073.0250
57/640.890622.62191 57/641.890648.02192 57/642.890673.4219
29/320.906323.01881 29/321.906348.41882 29/322.906373.8188
59/640.921923.41561 59/641.921948.81562 59/642.921974.2156
15/160.937523.81251 15/161.937549.21252 15/162.937574.6125
61/640.953124.20941 61/641.953149.60942 61/642.953175.0094
31/320.968824.60631 31/321.968850.00632 31/322.968875.4063
63/640.984425.00311 63/641.984450.40312 63/642.984475.8031
1 1.000025.40002 2.000050.80003 3.000076.2000
 
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