Drill Bits / 7/16 Diameter

7/16" Drill Bits

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7/16" Drill Bits for:

1/4 NPT Drill Size

1/4 NPT (Pipe Tap) Drill Size

/14 NPT Tap Drill Size

What size drill bit for a 1/4 NPT Tap?

A 7/16" drill bit (.4375" diameter) is the correct drill bit size for a 1/4 NPT (pipe tap) which has 18 threads per inch (1/4-18 NPT).  The 1/4 NPT is a pipe tap thread designed for a seal. The 1/4-18 NPT thread is one of the most popular thread sizes used in liquid and gas plumbing applications.  It is used in homes, commercial buildings, and industrial businesses for water plumbing and compressed air systems.  

Here is a summary of the features of the 7/16 drill bit size:

  • 7/16" (0.4375" or 11.11mm) cutting diameter.
  • Made in the USA from solid carbide, cobalt, and HSS
  • Drill Points:  118, 135, 140 and 150 degree included angles.
  • Cutting Edges:  2 and 3 flute.
  • Drill Lengths:  stub and jobber.
  • Coatings: Bright, AlTiN (aluminum titanium nitride), TiN (titanium nitride), Black Oxide, Black & Gold Oxide, and Gold Oxide.

Please note the quantities on hand.  We have live inventory, so your orders can ship today before 4:30 EST.

Find 7/16" Drill Bits Below

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20 Products: Page 1 of 1
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SKU
Description
Price $
In Stock
Quantity
HSS Drill Bit: Jobber Length, 118 Degree Point
7/16" HSS Drill Bit Jobber Length, 118° Point, 2 Flute, Black Oxide, TITAN
DIA=7/16" FL=4-1/16" OAL=5-1/2" SHK=7/16"
$6.36
438
Carbide Drill Bit: Stub Length, 135 Degree Point
7/16" Carbide Drill Bit Stub Length, 135° Point, 2 Flute, Uncoated, TITAN
DIA=7/16" FL=1-3/8" OAL=3" SHK=7/16"
$121.60
99
HSS Drill Bit: Jobber Length, 135 Degree Point
7/16" HSS Drill Bit Jobber Length, 135° Point, 2 Flute, Black Oxide, TITAN
DIA=7/16" FL=4-1/16" OAL=5-1/2" SHK=7/16"
$7.29
540
Cobalt Drill Bit: Stub Length, 135 Degree Point
7/16" Cobalt Drill Bit Stub Length, 135° Point, 2 Flute, Gold Oxide, TITAN
DIA=7/16" FL=2-1/16" OAL=3-7/16" SHK=7/16"
$12.68
162
HSS Drill Bit: Stub Length, 135 Degree Point
7/16" HSS Drill Bit Stub Length, 135° Point, 2 Flute, Bright, TITAN
DIA=7/16" FL=2-1/16" OAL=3-7/16" SHK=7/16"
$5.39
96
HSS Drill Bit: Jobber Length, 118 Degree Point
7/16" HSS Drill Bit Jobber Length, 118° Point, 2 Flute, TiN, TITAN
DIA=7/16" FL=4-1/16" OAL=5-1/2" SHK=7/16"
$16.67
24
Cobalt Drill Bit: Stub Length, 135 Degree Point
7/16" Cobalt Drill Bit Stub Length, 135° Point, 2 Flute, Gold Oxide, TITAN
DIA=7/16" FL=2-1/16" OAL=3-7/16" SHK=7/16"
$23.25
78
Carbide Drill Bit: Jobber Length, 118 Degree Point
7/16" Carbide Drill Bit Jobber Length, 118° Point, 2 Flute, AlTiN, TITAN
DIA=7/16" FL=2-7/8" OAL=4-1/2" SHK=7/16"
$135.86
26
TITAN USA Carbide Drill Bit Series 196 for Hardened Steels
7/16" Carbide Drill Bit Straight Flute, 140° Point, 2 Flute, Uncoated, TITAN
DIA=7/16" FL=1-3/8" OAL=3" SHK=7/16"
$116.33
8
Carbide Drill Bit: Jobber Length, 118 Degree Point Series 190
7/16" Carbide Drill Bit Jobber Length, 118° Point, 2 Flute, Uncoated, TITAN
DIA=7/16" FL=2-7/8" OAL=4-1/2" SHK=7/16"
$114.12
90
Carbide Drill Bit: Stub Length, 135 Degree Point
7/16" Carbide Drill Bit Stub Length, 135° Point, 2 Flute, AlTiN, TITAN
DIA=7/16" FL=1-3/8" OAL=3" SHK=7/16"
$144.23
41
HSS Drill Bit: Jobber Length, 118 Degree Point
7/16" HSS Drill Bit Jobber Length, 118° Point, 2 Flute, Bright, TITAN
DIA=7/16" FL=4-1/16" OAL=5-1/2" SHK=7/16"
$6.40
294
Cobalt Drill Bit: Jobber Length, 135 Degree Point
7/16" Cobalt Drill Bit Jobber Length, 135° Point, 2 Flute, AlTiN Coated, TITAN
DIA=7/16" FL=4-1/16" OAL=5-1/2" SHK=7/16"
$25.85
42
HSS Drill Bit: Stub Length, 135 Degree Point
7/16" HSS Drill Bit Stub Length, 135° Point, 2 Flute, Black Oxide, TITAN
DIA=7/16" FL=2-1/16" OAL=3-7/16" SHK=7/16"
$5.39
168
HSS Drill Bit: Jobber Length, 135 Degree Point
7/16" HSS Drill Bit Jobber Length, 135° Point, 2 Flute, Black & Gold Oxide, TITAN
DIA=7/16" FL=4-1/16" OAL=5-1/2" SHK=7/16"
$8.37
372
Cobalt Drill Bit: Jobber Length, 135 Degree Point
7/16" Cobalt Drill Bit Jobber Length, 135° Point, 2 Flute, Gold Oxide, TITAN
DIA=7/16" FL=4-1/16" OAL=5-1/2" SHK=7/16"
$14.15
342
Carbide Drill Bit: Jobber Length, 3 Flute, 150 Degree Point
7/16" Carbide Drill Bit Jobber Length, 150° Point, 3 Flute, Uncoated, TITAN
DIA=7/16" FL=2-7/8" OAL=4-1/2" SHK=7/16"
$138.23
75
TITAN USA Carbide Drill Bit Series 196 for Hardened Steels
7/16" Carbide Drill Bit Straight Flute, 140° Point, 2 Flute, AlTiN, TITAN
DIA=7/16" FL=1-3/8" OAL=3" SHK=7/16"
$128.42
4
M.A. Ford Carbide Drill Series 200 for Hardened Steels
7/16" Carbide Drill Bit: Straight Flute For Hard Steel, 135° Point, 2 Flute, Uncoated, MA Ford
DIA=7/16" FL=1" OAL=2-3/4" SHK=7/16"
$126.75
42
Carbide Drill Bit: Jobber Length, 3 Flute, 150 Degree Point
7/16" Carbide Drill Bit Jobber Length, 150° Point, 3 Flute, AlTiN, TITAN
DIA=7/16" FL=2-7/8" OAL=4-1/2" SHK=7/16"
$152.29
16
 
20 Products: Page 1 of 1
Products per Page:
20 Products: Page 1 of 2
HSS Drill Bit: Stub Length, 135 Degree Point
CD30028

7/16" HSS Drill Bit Stub Length, 135° Point, 2 Flute, Black Oxide, TITAN

DIA=7/16" FL=2-1/16" OAL=3-7/16" SHK=7/16"

 

 

Sale Price: $5.39
In Stock: 168
Qty
TITAN USA Carbide Drill Bit Series 196 for Hardened Steels
TC79528

7/16" Carbide Drill Bit Straight Flute, 140° Point, 2 Flute, AlTiN, TITAN

DIA=7/16" FL=1-3/8" OAL=3" SHK=7/16"

 

 

Sale Price: $128.42
In Stock: 4
Qty
Carbide Drill Bit: Jobber Length, 3 Flute, 150 Degree Point
TC20295

7/16" Carbide Drill Bit Jobber Length, 150° Point, 3 Flute, Uncoated, TITAN

DIA=7/16" FL=2-7/8" OAL=4-1/2" SHK=7/16"

 

 

Sale Price: $138.23
In Stock: 75
Qty
Carbide Drill Bit: Stub Length, 135 Degree Point
TC20028

7/16" Carbide Drill Bit Stub Length, 135° Point, 2 Flute, Uncoated, TITAN

DIA=7/16" FL=1-3/8" OAL=3" SHK=7/16"

 

 

Sale Price: $121.60
In Stock: 99
Qty
Cobalt Drill Bit: Stub Length, 135 Degree Point
CD60228

7/16" Cobalt Drill Bit Stub Length, 135° Point, 2 Flute, Gold Oxide, TITAN

DIA=7/16" FL=2-1/16" OAL=3-7/16" SHK=7/16"

 

 

Sale Price: $23.25
In Stock: 78
Qty
Cobalt Drill Bit: Jobber Length, 135 Degree Point
CD60728

7/16" Cobalt Drill Bit Jobber Length, 135° Point, 2 Flute, AlTiN Coated, TITAN

DIA=7/16" FL=4-1/16" OAL=5-1/2" SHK=7/16"

 

 

Sale Price: $25.85
In Stock: 42
Qty
HSS Drill Bit: Jobber Length, 135 Degree Point
CD44028

7/16" HSS Drill Bit Jobber Length, 135° Point, 2 Flute, Black Oxide, TITAN

DIA=7/16" FL=4-1/16" OAL=5-1/2" SHK=7/16"

 

 

Sale Price: $7.29
In Stock: 540
Qty
M.A. Ford Carbide Drill Series 200 for Hardened Steels
20043750

7/16" Carbide Drill Bit: Straight Flute For Hard Steel, 135° Point, 2 Flute, Uncoated, MA Ford

DIA=7/16" FL=1" OAL=2-3/4" SHK=7/16"

 

 

Sale Price: $126.75
In Stock: 42
Qty
Carbide Drill Bit: Jobber Length, 118 Degree Point Series 190
TC19028

7/16" Carbide Drill Bit Jobber Length, 118° Point, 2 Flute, Uncoated, TITAN

DIA=7/16" FL=2-7/8" OAL=4-1/2" SHK=7/16"

 

 

Sale Price: $114.12
In Stock: 90
Qty
Carbide Drill Bit: Stub Length, 135 Degree Point
TC29028

7/16" Carbide Drill Bit Stub Length, 135° Point, 2 Flute, AlTiN, TITAN

DIA=7/16" FL=1-3/8" OAL=3" SHK=7/16"

 

 

Sale Price: $144.23
In Stock: 41
Qty
Cobalt Drill Bit: Stub Length, 135 Degree Point
CD32528

7/16" Cobalt Drill Bit Stub Length, 135° Point, 2 Flute, Gold Oxide, TITAN

DIA=7/16" FL=2-1/16" OAL=3-7/16" SHK=7/16"

 

 

Sale Price: $12.68
In Stock: 162
Qty
Carbide Drill Bit: Jobber Length, 3 Flute, 150 Degree Point
TC20395

7/16" Carbide Drill Bit Jobber Length, 150° Point, 3 Flute, AlTiN, TITAN

DIA=7/16" FL=2-7/8" OAL=4-1/2" SHK=7/16"

 

 

Sale Price: $152.29
In Stock: 16
Qty
HSS Drill Bit: Jobber Length, 118 Degree Point
CD40028

7/16" HSS Drill Bit Jobber Length, 118° Point, 2 Flute, Black Oxide, TITAN

DIA=7/16" FL=4-1/16" OAL=5-1/2" SHK=7/16"

 

 

Sale Price: $6.36
In Stock: 438
Qty
HSS Drill Bit: Stub Length, 135 Degree Point
CD32324

7/16" HSS Drill Bit Stub Length, 135° Point, 2 Flute, Bright, TITAN

DIA=7/16" FL=2-1/16" OAL=3-7/16" SHK=7/16"

 

 

Sale Price: $5.39
In Stock: 96
Qty
Carbide Drill Bit: Jobber Length, 118 Degree Point
TC79028

7/16" Carbide Drill Bit Jobber Length, 118° Point, 2 Flute, AlTiN, TITAN

DIA=7/16" FL=2-7/8" OAL=4-1/2" SHK=7/16"

 

 

Sale Price: $135.86
In Stock: 26
Qty
20 Products: Page 1 of 2