Double Margin Drill Bits

Double margin drill bits are engineered for precision and efficiency, especially in demanding environments like aerospace. With a second margin ground behind the main one, these bits ensure close-tolerance drilling in hard materials. The trailing margin burnishes the cavity, delivering a true hole with a smoother finish and greater accuracy. This often eliminates the need for reaming, saving time and enhancing the quality of your work. Ideal for industrial workers who demand reliability and performance, these drill bits make your job easier and more efficient.

Fullerton 15329 1505 Dominator Single End Standard Length Double Margin Drill With Coolant Through, 3/16 in Drill - Fraction, 0.1875 in Drill - Decimal Inch, Round Shank, 7XD D Cutting, 2 FlutesFullerton$95.92

Fullerton 15349 1505 Dominator Single End Standard Length Double Margin Drill With Coolant Through, 23/64 in Drill - Fraction, 0.3594 in Drill - Decimal Inch, Round Shank, 5XD D Cutting, 2 FlutesFullerton$173.41

Fullerton 15389 1505 Dominator Single End Standard Length Double Margin Drill With Coolant Through, 31/64 in Drill - Fraction, 0.4844 in Drill - Decimal Inch, Round Shank, 5XD D Cutting, 2 FlutesFullerton$271.15

Fullerton 15175 1505 Dominator Single End Standard Length Double Margin Drill, U Drill - Letter, 0.368 in Drill - Decimal Inch, Round Shank, 3XD D Cutting, 2 FlutesFullerton$99.42

Fullerton 15687 1505 Dominator Single End Standard Length Double Margin Drill, 3/4 in Drill - Fraction, 0.75 in Drill - Decimal Inch, Round Shank, 5XD D Cutting, 2 FlutesFullerton$309.75

Fullerton 15380 1505 Dominator Single End Standard Length Double Margin Drill With Coolant Through, 25/64 in Drill - Fraction, 0.3906 in Drill - Decimal Inch, Round Shank, 5XD D Cutting, 2 FlutesFullerton$188.96

Fullerton 15251 1505 Dominator Single End Standard Length Double Margin Drill, #21 Drill - Wire, 0.159 in Drill - Decimal Inch, Round Shank, 3XD Cutting, 2 FlutesFullerton$60.15

Fullerton 15257 1505 Dominator Single End Standard Length Double Margin Drill, 3/16 in Drill - Fraction, 0.1875 in Drill - Decimal Inch, Round Shank, 3XD D Cutting, 2 FlutesFullerton$54.01

Fullerton 15646 1505 Dominator Single End Standard Length Double Margin Drill With Coolant Through, 27/64 in Drill - Fraction, 0.4219 in Drill - Decimal Inch, Round Shank, 5XD D Cutting, 2 FlutesFullerton$180.79

Fullerton 15650 1505 Dominator Single End Standard Length Double Margin Drill With Coolant Through, 1/2 in Drill - Fraction, 0.5 in Drill - Decimal Inch, Round Shank, 7XD D Cutting, 2 FlutesFullerton$228.61

Fullerton 15633 1505 Dominator Single End Standard Length Double Margin Drill, 13/32 in Drill - Fraction, 0.4062 in Drill - Decimal Inch, Round Shank, 3XD Cutting, 2 FlutesFullerton$118.44

Fullerton 15618 1505 Dominator Single End Standard Length Double Margin Drill, I Drill - Letter, 0.272 in Drill - Decimal Inch, Round Shank, 3XD D Cutting, 2 FlutesFullerton$73.25

Fullerton 15616 1505 Dominator Single End Standard Length Double Margin Drill, F Drill - Letter, 0.257 in Drill - Decimal Inch, Round Shank, 5XD D Cutting, 2 FlutesFullerton$68.03

Fullerton 15642 1505 Dominator Single End Standard Length Double Margin Drill With Coolant Through, 5/16 in Drill - Fraction, 0.3125 in Drill - Decimal Inch, Round Shank, 7XD D Cutting, 2 FlutesFullerton$135.15

Fullerton 15636 1505 Dominator Single End Standard Length Double Margin Drill With Coolant Through, 1/4 in Drill - Fraction, 0.25 in Drill - Decimal Inch, Round Shank, 7XD D Cutting, 2 FlutesFullerton$124.10

Fullerton 15619 1505 Dominator Single End Standard Length Double Margin Drill, 6.8 mm Drill - Metric, 0.2677 in Drill - Decimal Inch, Round Shank, 3XD D Cutting, 2 FlutesFullerton$89.11

Fullerton 15630 1505 Dominator Single End Standard Length Double Margin Drill, 23/64 in Drill - Fraction, 0.3594 in Drill - Decimal Inch, Round Shank, 3XD D Cutting, 2 FlutesFullerton$99.42

Fullerton 15681 1505 Dominator Single End Standard Length Double Margin Drill, 31/64 in Drill - Fraction, 0.4844 in Drill - Decimal Inch, Round Shank, 3XD D Cutting, 2 FlutesFullerton$172.83

Fullerton 15651 1505 Dominator Single End Standard Length Double Margin Drill, P Drill - Letter, 0.323 in Drill - Decimal Inch, Round Shank, 3XD D Cutting, 2 FlutesFullerton$101.61

Fullerton 15679 1505 Dominator Single End Standard Length Double Margin Drill, 15/32 in Drill - Fraction, 0.4688 in Drill - Decimal Inch, Round Shank, 3XD D Cutting, 2 FlutesFullerton$174.58

Fullerton 15614 1505 Dominator Single End Standard Length Double Margin Drill, 1/4 in Drill - Fraction, 0.25 in Drill - Decimal Inch, Round Shank, 5XD Cutting, 2 FlutesFullerton$54.86

Fullerton 15656 1505 Dominator Single End Standard Length Double Margin Drill With Coolant Through, 3/4 in Drill - Fraction, 0.75 in Drill - Decimal Inch, Round Shank, 5XD Cutting, 2 FlutesFullerton$425.95

Fullerton 15652 1505 Dominator Single End Standard Length Double Margin Drill With Coolant Through, 9/16 in Drill - Fraction, 0.5625 in Drill - Decimal Inch, Round Shank, 7XD Cutting, 2 FlutesFullerton$306.63

Fullerton 15620 1505 Dominator Single End Standard Length Double Margin Drill, 5/16 in Drill - Fraction, 0.3125 in Drill - Decimal Inch, Round Shank, 3XD D Cutting, 2 FlutesFullerton$73.86

Fullerton 15613 1505 Dominator Single End Standard Length Double Margin Drill, 5 mm Drill - Metric, 0.1969 in Drill - Decimal Inch, Round Shank, 5XD Cutting, 2 FlutesFullerton$53.81

Fullerton 15006 1505 Dominator Single End Standard Length Double Margin Drill, 1/8 in Drill - Fraction, 0.125 in Drill - Decimal Inch, Round Shank, 3XD D Cutting, 2 FlutesFullerton$50.84

Fullerton 15003 1505 Dominator Single End Standard Length Double Margin Drill, #36 Drill - Wire, 0.1065 in Drill - Decimal Inch, Round Shank, 3XD Cutting, 2 FlutesFullerton$54.59

Fullerton 15398 1505 Dominator Single End Standard Length Double Margin Drill With Coolant Through, 37/64 in Drill - Fraction, 0.5781 in Drill - Decimal Inch, Round Shank, 5XD D Cutting, 2 FlutesFullerton$351.81

Fullerton 15339 1505 Dominator Single End Standard Length Double Margin Drill With Coolant Through, 9/32 in Drill - Fraction, 0.2812 in Drill - Decimal Inch, Round Shank, 5XD D Cutting, 2 FlutesFullerton$142.33

Fullerton 15260 1505 Dominator Single End Standard Length Double Margin Drill, #3 Drill - Wire, 0.213 in Drill - Decimal Inch, Round Shank, 3XD D Cutting, 2 FlutesFullerton$62.98

Fullerton 15393 1505 Dominator Single End Standard Length Double Margin Drill With Coolant Through, 17/32 in Drill - Fraction, 0.5312 in Drill - Decimal Inch, Round Shank, 5XD D Cutting, 2 FlutesFullerton$366.11

Fullerton 15330 1505 Dominator Single End Standard Length Double Margin Drill, #2 Drill - Wire, 0.221 in Drill - Decimal Inch, Round Shank, 3XD D Cutting, 2 FlutesFullerton$61.71

Fullerton 15180 1505 Dominator Single End Standard Length Double Margin Drill, 3.3 mm Drill - Metric, 0.1299 in Drill - Decimal Inch, Round Shank, 5XD D Cutting, 2 FlutesFullerton$61.30

Fullerton 15181 1505 Dominator Single End Standard Length Double Margin Drill, 4.2 mm Drill - Metric, 0.1654 in Drill - Decimal Inch, Round Shank, 5XD D Cutting, 2 FlutesFullerton$61.30

Fullerton 15635 1505 Dominator Single End Standard Length Double Margin Drill, 29/64 in Drill - Fraction, 0.4531 in Drill - Decimal Inch, Round Shank, 3XD D Cutting, 2 FlutesFullerton$174.58

Choosing the Right Double Margin Drill Bits for Precision Drilling

Double margin drill bits are essential tools for achieving precision in close-tolerance drilling, especially in hard aerospace materials. These specialized drill bits feature a second margin ground behind the main margin, which helps in burnishing the cavity. This results in a true hole with a smoother finish, providing a more accurate and rounder drilled hole, often eliminating the need for reaming. When selecting double margin drill bits, it's crucial to consider several factors to ensure optimal performance and results.

Material Compatibility: Ensure the drill bit is suitable for the specific material you are working with, such as titanium or other aerospace-grade metals.
Drill Bit Size: Choose the correct size for your application to achieve the desired hole diameter and depth.
Coating: Consider drill bits with coatings like TiN or TiAlN for enhanced durability and heat resistance.
Shank Type: Select the appropriate shank type for your drill press or machine to ensure a secure fit.
Brand Reputation: Opt for reputable brands known for quality and reliability in precision drilling tools.
Price and Budget: Balance cost with quality to find a drill bit that meets your needs without overspending.

By taking these factors into account, you can make an informed decision when purchasing double margin drill bits, ensuring that you achieve the precision and quality required for your projects. Whether you're working in aerospace manufacturing or any other industry requiring high-precision drilling, the right double margin drill bit can make all the difference.

Ready to enhance your drilling precision? Browse our selection of double margin drill bits and find the perfect tool for your needs today!