Top 10 1/4-20 Tap and Drill – Countersink Drill Bits

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1. DEWALT

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UNC, DEWALT Drill Tap, 1/4-Inch DWADT1420

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DEWALT #ad - Hex shank of drill bit - Designed for Impact Drivers. Deburr and countersink in one step. Speed tip - Drills material quickly. Drills and taps hole in one application.
BrandDEWALT #ad
ManufacturerDewalt #ad
Height5.75 Inches
Length1.87 Inches
Weight0.02 Pounds
Width0.25 Inches
Part NumberDWADT1420
ModelDWADT1420

2. Klein Tools

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1/4-20, Klein Tools 32242 Drill Tap

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Klein Tools #ad - Replacement tap. For aluminum, copper, brass, mild steel and plastic. For use on up to 10 gauge metal. High speed steel.
BrandKlein Tools #ad
ManufacturerKlein Tools #ad
Height0.25 Inches
Length6 Inches
Weight0.03 Pounds
Width2 Inches
Part Number32242
Model32242
Warranty1 Year Manufacturer

3. IRWIN

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3-Piece 2620, 1/4-Inch, IRWIN Tap Set, High Carbon Steel, 20 NC

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IRWIN #ad - Convenient plastic pouch puts all the necessary taps at your finger tips. High carbon Steel Construction for Durability. Ideal for auto repair and machinery. Each set includes 1 taper, bottoming and plug tap in the specified size.
BrandIRWIN #ad
ManufacturerIRWIN #ad
Height0.8 Inches
Length4.2 Inches
Weight0.02 Pounds
Width2 Inches
Part Number2620
Model2620

4. Drill America

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POU Series, Drill America 1/4"-20 Tap and #7 Drill Bit Kit

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Drill America #ad - Set comes in plastic pouch. 1/4 inch. Set contains high speed steel plug hand tap and matching high speed steel drill bit. Black oxide drill bit is ideal for production, maintenance or portable drilling jobs. High speed steel plug hand threading tap is popular for use in general machine tapping or cnc tapping.
BrandDrill America #ad
ManufacturerDrill America #ad
Height2 Inches
Length6 Inches
Width4 Inches
Part NumberPOU1/4-20
ModelPOU1/4-20

5. Greenlee

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Madison Electric Products Greenlee, Drill/Tap,1/4-20, Hole Making DTAP1/4-20, Multi

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Greenlee #ad - Trusted and used by experts, professionals and those who know quality. Seven us based Manufacturing Facilities. Proven and tested for durabilty and function in real world job site conditions. Leading manufacturer of high-quality tools. United States Workforce.
BrandGreenlee #ad
ManufacturerGreenlee #ad
Height4.8 Inches
Length2.5 Inches
Weight0.04 Pounds
Width0.8 Inches
Part NumberDTAP1/4-20
ModelDTAP1/4-20
WarrantyGoods manufactured by Greenlee Textron will be free from defects in workmanship and material for a period of one year from the date of user purchase, provided such goods are installed, operated, used and maintained in accordance with Greenlee's written instructions.

6. Drill America

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DWT Series, Drill America, DWT57129 1/4"-20 High Speed Steel 2 Flute Spiral Point Tap

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Drill America #ad - Uncoated tools feature just the base substrate without any additional treatment or coatings and are suitable for a wide range of applications. Bottom style: Generate the thread to the bottom of the hole. High speed steel hand taps are the most versatile taps for hand use, or for tapping under power. High speed steel hand taps come in three styles: taper style: Starts the thread square with the workpiece. Hand taps are popular for use in general machine tapping or CNC tapping. Used to make new threads or re-thread damaged and/or jammed threads. Plug style: Generally used in thru holes.
BrandDrill America #ad
ManufacturerDrill America #ad
Part NumberDWT57129
ModelDWT57129

7. TEMO

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TEMO 2 pc 1/4-20 Combination Drill and Tap Multi Use Deburr Countersink Hex Bit

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TEMO #ad - Drill, tap and deburr in one operation. 135 self-centering split point tip. Usage suggestions: use of cutting coil recommended. Tapered tap design prevents thread damage from over-drilling. 2 pc 1/4-20 combination drill and Tap Multi Use Deburr Countersink Hex Bit. Clean tap of metal chips to extend life. For use with: steel, brass, aluminum. Drill, copper, tap and deburr in one operation. 10 gauge 3. 5mm capacity. One piece construction guarantees proper drill for tap size. Reverse drill to back out after completing tap. Made of high speed m2 steel.
BrandTEMO #ad
ManufacturerGolden Coulee #ad
Height0.25 Inches
Length3.5 Inches
Weight0.06 Pounds
Width4 Inches
Part Number3139

8. Greenlee

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Greenlee DTAP1/4-20 Hardened High Speed Steel Split Point Drill & Tap, 1/4-20 NC

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Greenlee #ad - Back tapered beyond tap to prevent thread damage from over-drilling. Complete hole drilling, tapping and deburring/countersinking in one operation with power drill saves labor and time. Deburr/countersink also provided on bit beyond back taper. High quality hex shank to ensure strong connection to drill chuck. Made from hardened high-speed steel vs carbon steel for longer life.
BrandGreenlee #ad
ManufacturerGreenlee #ad
Height5 Inches
Length3 Inches
Weight0.2 Pounds
Width1 Inches
Part NumberDTAP1/4-20
ModelDTAP1/4-20

9. Drill America

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Drill America DWT54455 1/4"-20 UNC High Speed Steel Bottoming Tap, Pack of 1

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Drill America #ad - Used to make new threads or re-thread damaged and/or jammed threads. Hand taps are popular for use in general machine tapping or CNC tapping. Bottom style: Generate the thread to the bottom of the hole. High speed steel hand taps come in three styles: taper style: Starts the thread square with the workpiece. Uncoated tools feature just the base substrate without any additional treatment or coatings and are suitable for a wide range of applications. Plug style: Generally used in thru holes. High speed steel hand taps are the most versatile taps for hand use, or for tapping under power.
BrandDrill America #ad
ManufacturerDrill America #ad
Part NumberDWT54455
ModelDWT54455

10. Drill America

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Drill America 1/4"-20 UNC High Speed Steel Tap Set

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Drill America #ad - Hand taps are popular for use in general machine tapping or CNC tapping. Plug style: Generally used in thru holes. Bottom style: Generate the thread to the bottom of the hole. Used to make new threads or re-thread damaged and/or jammed threads. Uncoated tools feature just the base substrate without any additional treatment or coatings and are suitable for a wide range of applications. High speed steel hand taps are the most versatile taps for hand use, or for tapping under power. High speed steel hand taps come in three styles: taper style: Starts the thread square with the workpiece.
BrandDrill America #ad
ManufacturerDrill America #ad
Part NumberDWT54460
ModelDWT54460