Drill Point

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describe a correctly sharpened drill point, what drill point angle is best for drilling stainless steel?

1 describe a correctly sharpened drill point
2. what drill point angle is best for drilling stainless steel
3 Which drill in the number series is the largest ? which is smallest?

The standard drill angle for conventional drilling is 118 degrees (included angle)
For stainless steel drilling the included angle can be 135 degrees (titanium suggested)
The largest numbered drill bit is #1 = .2280
The smallest numbered bit is #80 = .0135
extra credit
The largest lettered drill bit is "Z" = .4130
The smallest " " "A"= .2340

Discover Drill Point On eBay Below:

11 16 Black  Gold 1 2Shank Silver  Deming Drill 118Split Point YG1 D1191044
11 16 Black Gold 1 2Shank Silver Deming Drill 118Split Point YG1 D1191044
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Carbide BurPointed Cone1 8dbl Cut WIDIA METAL REMOVAL M41487
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5 160mm 0630 2 FLUTE ENDMILLS DRILL POINT ENDMILLS 16000
5 160mm 0630 2 FLUTE ENDMILLS DRILL POINT ENDMILLS 16000
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8885 YG 1 SHSS Drill TiALN Spade SM Point Insert
8885 YG 1 SHSS Drill TiALN Spade SM Point Insert
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Sphinx 0161 Cobalt RH Spirec Micro Twist Drill 118 Point Pack of 10
Sphinx 0161 Cobalt RH Spirec Micro Twist Drill 118 Point Pack of 10
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1 YG SHSS Drill TiALN Spade SM Point Insert S08203
1 YG SHSS Drill TiALN Spade SM Point Insert S08203
$11.99
5 8 YG 0 SHSS Drill TiALN Spade SM Point Insert S08012
5 8 YG 0 SHSS Drill TiALN Spade SM Point Insert S08012
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Irwin HSS 12 PCS Number 24 M2 Screw Machine Drill Bits 135 Deg Split Point
Irwin HSS 12 PCS Number 24 M2 Screw Machine Drill Bits 135 Deg Split Point
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Irwin Screw Machine Drill Bits 12 PCS HSS 51 M2 HSS  135 Deg Split Point
Irwin Screw Machine Drill Bits 12 PCS HSS 51 M2 HSS 135 Deg Split Point
$12.00
15 16 YG 1 SHSS Drill TiALN Spade SM Point Insert SR08121 QTY 2
15 16 YG 1 SHSS Drill TiALN Spade SM Point Insert SR08121 QTY 2
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1 2 Straight Shank 155mm Split Point Tip HSS Twist Drill Bit
1 2 Straight Shank 155mm Split Point Tip HSS Twist Drill Bit
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135mm Jobber Length Straight Shank 118 Point HSS Black Drill 4 13 16LOC USA
135mm Jobber Length Straight Shank 118 Point HSS Black Drill 4 13 16LOC USA
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5 8 YG 0 SHSS Drill TiN Spade SM Point Insert S66006 QTY 2
5 8 YG 0 SHSS Drill TiN Spade SM Point Insert S66006 QTY 2
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12 new CHICAGO LATROBE 45 135 Point Parabolic Taper Length Twist Drills USA
12 new CHICAGO LATROBE 45 135 Point Parabolic Taper Length Twist Drills USA
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W L Fuller 20100156 5 32 7 Screw Taper Point Drill
W L Fuller 20100156 5 32 7 Screw Taper Point Drill
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CenTech Protractor Square Center Finder Drill Point Circle Divider Metal Gauge
CenTech Protractor Square Center Finder Drill Point Circle Divider Metal Gauge
$15.00
Pittsburg Protractor Square Center Finder Drill Point Circle Divider Metal Gauge
Pittsburg Protractor Square Center Finder Drill Point Circle Divider Metal Gauge
$15.00
1 4 HSS Co5 M35 6 Aircraft Extension Drill 135Split Point 10pcs YG1
1 4 HSS Co5 M35 6 Aircraft Extension Drill 135Split Point 10pcs YG1
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45 64 Cobalt 1 2 Shank Silver  Deming Drill 135Notched Point USA 303C 45 64
45 64 Cobalt 1 2 Shank Silver Deming Drill 135Notched Point USA 303C 45 64
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145mm Jobber Length Straight Shank 118 Point HSS Black Drill 4 13 16LOC USA
145mm Jobber Length Straight Shank 118 Point HSS Black Drill 4 13 16LOC USA
$24.74
6 2040 Diameter Stub Cobalt Drill Bit 135 Split Point USA RMT 95006305
6 2040 Diameter Stub Cobalt Drill Bit 135 Split Point USA RMT 95006305
$5.16
19 32 Heavy Duty Cobalt 135 Split Point Jobber Length Drill USA 300C 19 32
19 32 Heavy Duty Cobalt 135 Split Point Jobber Length Drill USA 300C 19 32
$37.97
17 32 Heavy Duty Cobalt 135 Notched Point Stub Length Drill USA 600C 17 32
17 32 Heavy Duty Cobalt 135 Notched Point Stub Length Drill USA 600C 17 32
$32.83
21 32 Heavy Duty Cobalt 135 Split Point Jobber Length Drill USA 300C 21 32
21 32 Heavy Duty Cobalt 135 Split Point Jobber Length Drill USA 300C 21 32
$44.87
21 32 Cobalt 1 2 Shank Silver  Deming Drill 135Notched Point USA 303C 21 32
21 32 Cobalt 1 2 Shank Silver Deming Drill 135Notched Point USA 303C 21 32
$41.49
3 8 Taper Length Drill HSS Straight Shank 118 Point 4 1 4 LOC USA 400 3 8
3 8 Taper Length Drill HSS Straight Shank 118 Point 4 1 4 LOC USA 400 3 8
$9.62
3pcs 9 1960 TiN Cobalt 130Point Parabolic Flute Stub Drill YG1 DN515209 YG1
3pcs 9 1960 TiN Cobalt 130Point Parabolic Flute Stub Drill YG1 DN515209 YG1
$9.42
W L Fuller 20100187 3 16 9 Screw Taper Point Drill
W L Fuller 20100187 3 16 9 Screw Taper Point Drill
$14.25
15mm Jobber Length Straight Shank 118 Point HSS Black Drill 5 3 16 LOC USA
15mm Jobber Length Straight Shank 118 Point HSS Black Drill 5 3 16 LOC USA
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Interstate 9 16 Inch 1MT High Speed Steel 118 Point Angle Oxide Finish
Interstate 9 16 Inch 1MT High Speed Steel 118 Point Angle Oxide Finish
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New 1 1 16 American Silver  Deming Cobalt Drill 130 Helical Point
New 1 1 16 American Silver Deming Cobalt Drill 130 Helical Point
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Cobra Carbide 2 Flute 90 Drill Point Endmills EMSC 3 4 2FSEDM 90 TiAlN 3 4 x
Cobra Carbide 2 Flute 90 Drill Point Endmills EMSC 3 4 2FSEDM 90 TiAlN 3 4 x
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Cobra Carbide 2 Flute 90 Drill Point Endmills EMSC 1 2 2FSEDM 90 Bright 1 2x 1
Cobra Carbide 2 Flute 90 Drill Point Endmills EMSC 1 2 2FSEDM 90 Bright 1 2x 1
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Cobra Carbide 2 Flute 90 Drill Point Endmills EMSC 1 2 2FSEDM 90 TiAlN 1 2x 1
Cobra Carbide 2 Flute 90 Drill Point Endmills EMSC 1 2 2FSEDM 90 TiAlN 1 2x 1
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Cobra Carbide 2 Flute 90 Drill Point Endmills EMSC 5 8 2FSEDM 90 Bright 5 8 x
Cobra Carbide 2 Flute 90 Drill Point Endmills EMSC 5 8 2FSEDM 90 Bright 5 8 x
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Cobra Carbide 2 Flute 90 Drill Point Endmills EMSC 5 8 2FSEDM 90 TiAlN 5 8 x
Cobra Carbide 2 Flute 90 Drill Point Endmills EMSC 5 8 2FSEDM 90 TiAlN 5 8 x
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Cobra Carbide 2 Flute 90 Drill Point Endmills EMSC 3 4 2FSEDM 90 Bright 3 4 x
Cobra Carbide 2 Flute 90 Drill Point Endmills EMSC 3 4 2FSEDM 90 Bright 3 4 x
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Cobra Carbide 2 Flute 90 Drill Point Endmills EMSC 5 16 2FSEDM 90 Bright 5 16
Cobra Carbide 2 Flute 90 Drill Point Endmills EMSC 5 16 2FSEDM 90 Bright 5 16
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Cobra Carbide 2 Flute 90 Drill Point Endmills EMSC 5 16 2FSEDM 90 TiAlN 5 16 x
Cobra Carbide 2 Flute 90 Drill Point Endmills EMSC 5 16 2FSEDM 90 TiAlN 5 16 x
$69.74

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