goldstarkitchen 
Best results for drill hole for 1/4-20 tap
Greenlee DTAP1/4-20 Combination Drill and Tap Bit, 1/4-20NC
$7.39
$8.65
Amazon.com
Last update was on: November 23, 2024 10:39 pm
- Complete hole drilling, tapping, deburring and countersinking in one operation with power drill saves labor and time
- Back tapered beyond tap to prevent thread damage from over-drilling
- Deburr/countersink also provided on bit beyond back taper
- Made from hardened high-speed steel vs carbon steel for longer life
- Designed to tap up to 10-gauge metal
Irwin Tools 2620- 3 Piece High Carbon Steel- Tap 1/4" – 20 NC
YG-1 F4 Series Vanadium Alloy HSS Spiral Flute Tap, Steam Oxide, Round Shank with Square End, Bottoming Chamfer, 1/4"-20 Thread Size, H3 Tolerance
$10.69
$14.65
Amazon.com
Last update was on: November 23, 2024 10:39 pm
- High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance
- Black oxide treatment adds lubricity and creates small pockets on the surface of the tool that act to hold coolant near the cutting edge
- Round shanks allow use with a wide variety of toolholding systems
- When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging
6Pcs/Set Hex Shank Drill Bits HSS 4341 Combination Drill and Tap Bit Screw Tap Deburr Countersink Bit (6-32NC 8-32 NC 10-32 NC 10-24 NC 12-24 NC 1/4-20 NC)
$13.99
$16.79
Amazon.com
Last update was on: November 23, 2024 10:39 pm
- 6Pcs Hex Shank Drill Bits Set Inculued Size: 6-32NC (3.5mm), 8-32NC (4.2mm), 10-32NC (5mm), 10-24NC (5mm), 12-24NC (5.7mm), 1/4-20NC (6.35mm)
- Made of High-speed Steel 4341, Hard, Rustproof, Solid and Durable.
- Suitable for Low Hardness Materials Such as Wood, Aluminium Plate, Plank, Plastic, or Sheet Iron (thickness of less than 3mm).
- One-step Processing, Drilling, Tapping, Deburring and Countersinking in One Operation, Working Efficiently and Saving Time and Labor.
AUTOTOOLHOME Combination Drill and Tap Bit 6-32nc 8-32nc 10-32nc 10-24nc 12-24nc 1/4-20nc Set of 6
$11.89
$15.46
Amazon.com
Last update was on: November 23, 2024 10:39 pm
- Complete hole drilling, tapping, deburring and countersinking in one operation with power drill saves labor and time
- Back tapered beyond tap to prevent thread damage from over-drilling
- Deburr/countersink also provided on bit beyond back taper
- Made from hardened high-speed steel (HSS 4341) vs carbon steel for longer life
- Designed to tap up to 10-gauge metal
Best Choice 40-Piece Tap and Die Set – SAE Inch Sizes | Essential Threading Tool with Storage Case
$26.99
$32.39
Amazon.com
Last update was on: November 23, 2024 10:39 pm
- PREMIUM MATERIAL AND DURABILITY: Industrial grade GCr15 bearing steel construction ensures durability and tool longevity
- EXCELLENT CUTTING PERFORMANCE: All cutting teeth are precisely CNC machined and accurately heat treated to Rockwell hardness 60 HRC for best threading performance
- TAPERED TEETH DESIGN: Tapered coarse and fine taps and dies start threading more easily and smoothly, and prevent overthreading
Greenlee DTAPKIT 6-32 to 1/4-20 6-Piece Combination Drill and Tap Set
Amazon.com
Last update was on: November 23, 2024 10:39 pm
- Complete hole drilling, tapping, deburring and countersinking in one operation with power drill saves labor and time
- Back tapered beyond tap to prevent thread damage from over-drilling
- Deburr/countersink also provided on bit beyond back taper
- Made from hardened high-speed steel vs carbon steel for longer life
- Designed to tap up to 10-gauge metal
DEWALT DWADT1420 20 UNC Drill Tap, 1/4"
Alfa Tools CSHTS70532 1/4-20 Carbon Steel Hand Tap Set Taper/Plug/Bottom
$14.20
$16.19
Amazon.com
Last update was on: November 23, 2024 10:39 pm
- Hand tap 3-piece set
- 1/4-Inch-20 national coarse thread size
- Contains 1 each: taper, plug, Bottoming
- Precision-made from high carbon tool steel
- ideal for hand threading in routine maintenance, repair work and for Rethreading applications
- Quantity: 1 set of 3 boxed
IRWIN HANSON 1/4" – 20 NC Tap and 13/64" Drill Bit Set, 80230
$7.24
$8.47
Amazon.com
Last update was on: November 23, 2024 10:39 pm
- N/A
- Imported
- Ideal for creating and threading fasteners holes in metal
- Creates 20 threads per inch
- Drill bit constructed of high speed steel for fast and precise drilling
- Tap crafted of high carbon steel for general purpose drilling
EZARC Carbide Hole Cutter Heavy Duty for Stainless Steel, 1-1/4” 32mm
$24.99
$35.99
Amazon.com
Last update was on: November 23, 2024 10:39 pm
- Extreme durability and no teeth breakage for any tough job
- Provide fast and precise cuts into stainless steel, sheet metal, FRP and wood
- Smooth cuts with perfect cutting result
- All in one design: Drill bit, spring, wrench are included, no need to buy any extra accessories for the drilling works
- Replaceable high quality pilot drill bit are available
Breynet Deburring External Chamfer Tool, 6pcs Combination Drill and Tap Bit Set 6-32NC 8-32 NC 10-32 NC 10-24 NC 12-24 NC 1/4-20 NC, 5” Automatic Spring-Loaded Center Hole Punch Tool Set
$15.99
$19.35
Amazon.com
Last update was on: November 23, 2024 10:39 pm
- ▲ Metric Deburr Countersink Drill Bit Complete hole drilling, tapping, deburring and countersinking in one operation with power drill saves labor & time
- ▲ Drilling and tapping 2 in 1.Suitable for wood, plank, plastic, aluminium plate or sheet iron (thickness of less than 3mm).
- ▲ Auto Centering Hole Punch for Determine Drilling Position can mark a dimpled starting point in materials such as sheet metal, wood, plastic surface and prevent nails or screws from wandering around
Forney 20857 Tap Magic Industrial Pro Cutting Fluid, 4 oz
$11.09
$14.75
Amazon.com
Last update was on: November 23, 2024 10:39 pm
- Non-Spray cutting fluid
- Use for tapping, threading, drilling and reaming
- Use on ferrous metals and non-ferrous alloys
- Apply directly on the work surface
- Click on the (BY FORNEY) name above in blue under the title to view our full catalog of Welders, Abrasives, Chain/Wire Rope, Tools and more!
Helicoil 5521-4 1/4-20 Inch Coarse Thread Repair Kit
$16.79
$20.65
Amazon.com
Last update was on: November 23, 2024 10:39 pm
- The product is 1/4-20thread repair kit
- Easy and simple use kit
- The product is manufactured in china
- Includes 12 inserts, complete instructions, Heli-Coil tap and installation tool
- Used for repairing tapped holes
- Made from high quality material
Hanson 1765538 Pts Drill + Tap Combo 1/4-20/Number 7, for Tap Die Extraction
$12.35
$16.92
Amazon.com
Last update was on: November 23, 2024 10:39 pm
- This tap and drill set contains a convenient HCS tap and HSS drill bit
- Self-aligning taps start and thread straight virtually every time
- Great for through holes and irregular surfaces
- Plug taps are ideal for general purpose threading
- Special chip-breaking technology cuts chips easier
ABN Metric and SAE Standard Tap and Die 60-Piece Rethread Set Rethreading Kit for Cutting External and Internal Threads
$46.99
$65.79
Amazon.com
Last update was on: November 23, 2024 10:39 pm
- CUT AND RENEW THREADS: The ABN Metric and SAE Standard Tap and Die 60-Piece Rethread Set Rethreading Kit for Cutting External and Internal Threads is a comprehensive set for cutting and renewing external and internal threads to exact standards
- SIZES: Metric taps 3x0.5, 4x0.7, 5x0.8, 6x1.0, 7x1.0, 8x1.25, 9x1.25, 10x1.0, 10x1.5, 12x1.75
- UNC taps 4-40, 6-32, 8-32, 10-24, 12-24, 1/4, 5/16, 3/8, 7/16, 1/2
E-Z Lok 400-4 Threaded Insert, Brass, Knife Thread, 1/4"-20 Internal Threads, 0.500" Length (Pack of 25)
$6.53
$7.84
Amazon.com
Last update was on: November 23, 2024 10:39 pm
- Provides a Strong Machine Thread In Hard Woods
- Ideal For Use in Woods Like Oak, Cherry, and Maple
- Designed For Use In Furniture, Cabinetry, Storm Windows and Tap Handles
- Simply Drill the Appropriately Sized Hole and Install with Bolt/Jam Nut or Optional Drive Tool
- Threaded Insert, Brass, Knife Thread, 1/4"-20 Internal Threads, 0. 500" Length (Pack of 25)
Champion DT22HEX-1/4-20 Combination 1/4-20 Drill and Tap Hex Shank
$15.00
$17.40
Amazon.com
Last update was on: November 23, 2024 10:39 pm
- Tapered neck design significantly reduces drill & tap breakage
- The 135 degree split point drill permits holes to be cut at high speeds. Taping caution must be adhered to with slower speed.
- Superior strength durability provided by high Molybdenum content and high speed steel with functional black and gold surface treatment that holds lubricant for smoother drilling.
- Applications include: Construction, Electrical, Maintenance, Industrial, Automotive, Farm Implement Machinery, HVAC. Cuts steel, cast iron, aluminum, bronze, brass, zinc and some stainless steel.
