M4 Drill Bits | McMaster-Carr

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Thread Type

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Thread Pitch

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Number of Pieces

Tap Sizes Included

1 each of sizes M2.5 × 0.45 mm, M3 × 0.50 mm, M3.5 × 0.60 mm, M4 × 0.70 mm, M5 × 0.80 mm, M6 × 1.00 mm, M8 × 1.25 mm,

1 each of sizes M3 × 0.5 mm, M4 × 0.7 mm, M5 × 0.8 mm, M6 × 1.0 mm, M8 × 1.25 mm, and M10 × 1.5 mm

1 each of sizes M3 × 0.50 mm, M3.5 × 0.60 mm, M4 × 0.70 mm

3 each of sizes M3 × 0.50 mm, M4 × 0.70 mm, M5 × 0.80 mm, M6 × 1.00 mm, M8 × 1.25 mm, M10 × 1.50 mm, and M12 × 1.75 mm

Chamfer Type

Sold As

Shank Type

Number of Taps

Die Sizes Included

Number of Drill Bits

Drill Bit Material

Container Type

Pipe Size

Drill Bit Size

For Use With

Drills and Powered Screwdrivers

Export Control Classification Number (ECCN)

EAR99

RoHS

Compliant

Compliant with Exemptions

Not Compliant

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

REACH

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DFARS Specialty Metals

Shape

21 Products

Tap, Die, and Drill Bit Sets

Cut and repair threads and drill holes in many different sizes. Tap and die wrenches are included. The dies are hex shaped for use with conventional wrenches. The taps are made of carbon steel and are recommended for thread repair and occasional tapping.

Taper Chamfer—Taper chamfer taps have 7-10 chamfered threads at the tip for cutting into the workpiece. They require less torque than other chamfer types, making them a good choice for starting threads and tapping through holes. However, a longer taper means that they cannot thread as close to the bottom of closed-end holes.

Plug Chamfer—Plug chamfer taps are a versatile choice for most tapping applications. With 3-5 chamfered cutting threads, they require moderate torque and are often used for start-to-finish tapping of through holes and closed-end holes. However, they do not start threads as easily as taper chamfers. When using them to tap closed-end holes, be sure to leave sufficient space at the bottom for chips to accumulate.

	Drill Bit Sizes Included	Container Type	Includes	Tap Chamfer Type		Each
Carbon Steel







	Right-Hand Thread

	117	4-40, 6-32, 8-32, 10-24, 10-32, 12-24, 1/8"-27, 1/8"-28, 1/4"-20, 1/4"-28, 5/16"-18, 5/16"-24, 3/8"-16, 3/8"-24, 7/16"-14, 7/16"-20, 1/2"-13, 1/2"-20, M3 × 0.50 mm, M4 × 0.70 mm, M4 × 0.75 mm, M5 × 0.80 mm, M5 × 0.90 mm, M6 × 1.00 mm, M7 × 1.00 mm, M8 × 1.00 mm, M8 × 1.25 mm, M9 × 1.00 mm, M9 × 1.25 mm, M10 × 1.25 mm, M10 × 1.50 mm, M11 × 1.50 mm, M12 × 1.50 mm, M12 × 1.75 mm	4-40, 6-32, 8-32, 10-24, 10-32, 12-24, 1/8"-27, 1/8"-28, 1/4"-20, 1/4"-28, 5/16"-18, 5/16"-24, 3/8"-16, 3/8"-24, 7/16"-14, 7/16"-20, 1/2"-13, 1/2"-20, M3 × 0.50 mm, M4 × 0.70 mm, M4 × 0.75 mm, M5 × 0.80 mm, M5 × 0.90 mm, M6 × 1.00 mm, M7 × 1.00 mm, M8 × 1.00 mm, M8 × 1.25 mm, M9 × 1.00 mm, M9 × 1.25 mm, M10 × 1.25 mm, M10 × 1.50 mm, M11 × 1.50 mm, M12 × 1.50 mm, M12 × 1.75 mm	5/64", 7/64", 5/32", 1/4", 19/64", 5/16", 21/64", 3/8", 25/64", 13/32", 27/64", 29/64", 43 ga., 39 ga., 36 ga., 30 ga., 29 ga., 25 ga., 21 ga., 20 ga., 16 ga., 9 ga., 7 ga., 3 ga., B, F, H, I, J, O, Q, R, S, U, Z	Plastic Case	Die Wrench (2), Extractor (5), Tap Wrench (3), Thread Gauge (2)	Taper, Plug	00000000	0000000

Quick-Change Hex Shank Drill Tap Sets for Drills and Screwdrivers

Plastic Case

Drill and tap holes in a range of diameters. With a drill bit point to drive into the workpiece, these tools can drill and tap holes in a single step. They also save you time when changing from tool to tool. The grooved shank snaps directly to drills, power screwdrivers, and other tools that accept a 1/4" hex shank. However, they’re not rated for impact drivers. They’re made of high-speed steel and are for use on most metal and plastic.

Their spiral flutes keep chips clear by drawing them back toward the tap and out of the hole. Recommended for use in through holes, all have a plug chamfer with 3-5 chamfered cutting threads, so they’re suitable for start-to-finish tapping.

	Chamfer Type	Tap Sizes Included	No. of Flutes	Drill Bit Sizes Included	Container Type	Includes		Each
Uncoated High-Speed Steel



	7	Plug	M3 × 0.5 mm M4 × 0.7 mm M5 × 0.8 mm M6 × 1.0 mm M8 × 1.25 mm M10 × 1.5 mm	2	3/32" 1/8" 11/64" 13/64" 17/64" 31/64"	Plastic Case	Chuck	0000000	0000000

Tap and Drill Bit Sets

Metal Case

Plastic Pouch

Drill and tap a variety of hole sizes. These taps and drill bits are for use on metal and plastic.

Uncoated Carbon Steel Tap—Uncoated carbon steel taps are for thread repair and occasional tapping.

Uncoated High-Speed Steel Tap—Uncoated high-speed steel taps have a longer tool life than carbon steel. They are strong enough for most jobs but don’t last as long as other high-speed steel taps. Use them for small-scale jobs.

Taper Chamfer—Taper-chamfer taps have 7-10 chamfered threads at the tip for cutting into the workpiece. They require less torque than other chamfer types, making them a good choice for starting threads and tapping through holes. However, a longer taper means that they cannot thread as close to the bottom of closed-end holes.

Plug Chamfer—Plug-chamfer taps are a versatile choice for most tapping applications. With 3-5 chamfered cutting threads, they require moderate torque and are often used for start-to-finish tapping of through holes and closed-end holes. However, they do not start threads as easily as taper chamfers. When using them to tap closed-end holes, be sure to leave sufficient space at the bottom for chips to accumulate.

Bottoming Chamfer—Bottoming-chamfer taps cut into the workpiece with just 1-2 chamfered threads. This short chamfer lets them thread holes closer to the bottom than other taps, but they require more torque to start threads.

Black-Oxide High-Speed Steel Drill Bit—Black-oxide high-speed steel drill bits have a longer tool life than carbon steel. They cut with less friction than uncoated drill bits.

Uncoated High-Speed Steel Drill Bit—Uncoated high-speed steel drill bits have a longer tool life than carbon steel. They are strong enough for most jobs but don’t last as long as other high-speed steel drill bits. Use them for small-scale jobs.

	Chamfer Type	Tap Sizes Included	Overall Lg.	Thread Type	No. of Flutes	Pitch Dia. Limit	Drill Bit Sizes Included	Drill Bit Material	Container Type	Includes		Each
Uncoated Carbon Steel Tap



	29	Taper, Plug, Bottoming	3 each of sizes: M3 × 0.50 mm M4 × 0.70 mm M5 × 0.80 mm M6 × 1.00 mm M8 × 1.25 mm M10 × 1.50 mm M12 × 1.75 mm	1 39/64" 1 27/32" 2 1/64" 2 3/32" 2 13/64" 2 3/4" 2 61/64"	Metric	3, 4	H6	2.5 mm 3.3 mm 4.2 mm 5.0 mm 6.8 mm 8.5 mm 10.2 mm	Black-Oxide High-Speed Steel	Metal Case	Tap Wrench	0000000	0000000


	Uncoated High-Speed Steel Tap



			16	Plug	1 each of sizes: M3 × 0.50 mm M3.5 × 0.60 mm M4 × 0.70 mm M5 × 0.80 mm M6 × 1.00 mm M8 × 1.25 mm M10 × 1.50 mm M12 × 1.75 mm	1 15/16" 2" 2 1/8" 2 3/8" 2 1/2" 2 3/4" 2 15/16" 3 3/8"	Metric	3, 4	D3, D4, D5, D6	2.5 mm 2.9 mm 3.3 mm 4.2 mm 5.0 mm 6.75 mm 8.5 mm 10.25 mm	Black-Oxide High-Speed Steel	Plastic Pouch	—	0000000	000000


			18	Plug	1 each of sizes: M2.5 × 0.45 mm M3 × 0.50 mm M3.5 × 0.60 mm M4 × 0.70 mm M5 × 0.80 mm M6 × 1.00 mm M8 × 1.25 mm M10 × 1.50 mm M12 × 1.75 mm	1 3/4" 1 15/16" 2" 2 1/8" 2 3/8" 2 1/2" 2 23/32" 2 15/16" 3 3/8"	Metric	3, 4	D3, D4, D5, D6	2.05 mm 2.5 mm 2.9 mm 3.3 mm 4.2 mm 5.0 mm 6.7 mm 8.5 mm 10.2 mm	Uncoated High-Speed Steel	Metal Case	—	00000000	000000
			29	Taper, Plug, Bottoming	3 each of sizes: M3 × 0.50 mm M4 × 0.70 mm M5 × 0.80 mm M6 × 1.00 mm M8 × 1.25 mm M10 × 1.50 mm M12 × 1.75 mm	1 39/64" 1 27/32" 2 1/64" 2 3/32" 2 13/64" 2 3/4" 2 61/64"	Metric	3, 4	H6	2.5 mm 3.3 mm 4.2 mm 5.0 mm 6.8 mm 8.5 mm 10.2 mm	Black-Oxide High-Speed Steel	Metal Case	Tap Wrench	0000000	000000

Hex-Bit Tap Sets

The taps in these sets have the same hex shank as screwdriver bits. Snap them into the included driver to thread a range of hole sizes. Then switch to a screwdriver bit to install the fastener. Taps have straight flutes that are good for most jobs.

High-Speed Steel—Multiple Thread Size Sets

Image of Product. Front orientation. Taps. For Threading Fastener Threads, For Fastener Threads, Bit, Right-Hand Thread, Sold as Sets.

The most versatile taps resist heat and wear to stay sharp. They’re good for most metals and plastic. These sets include multiple sizes of plug chamfer taps for through holes and blind holes.

Uncoated—The economical choice, these won't last as long as coated taps.

							Plug Chamfer
	No. of Pieces	Thread Size	Thread Type	Container Type	No. of Flutes	Shank Type		Each
Uncoated



		8	1 each of sizes M3 × 0.5 mm, M4 × 0.7 mm, M5 × 0.8 mm, M6 × 1.0 mm, M8 × 1.25 mm, and M10 × 1.5 mm	Metric	Plastic Case	4	Hex	0000000	0000000

Chip-Clearing Tap and Drill Bit Sets for Through Holes

Also known as gun taps, the taps in these sets have spiral-point flutes that push chips ahead of the tap and out of through holes. Because they don't need to be reversed to prevent buildup, they produce threads more efficiently than standard taps and are suitable for production work. Taps have a square shank for compatibility with tap wrenches and tap holders for drill presses and milling machines. With a plug chamfer, they have 3-5 chamfered cutting threads, so they're suitable for start-to-finish tapping. All taps and drill bits are made of high-speed steel for use on most metal and plastic.

	Chamfer Type	Tap Sizes Included	Overall Lg.	Thread Type	No. of Flutes	Pitch Dia. Limit	Drill Bit Sizes Included	Drill Bit Material	Container Type		Each
Gold-Oxide High-Speed Steel Tap



	18	Plug	M2.5 × 0.45 mm M3 × 0.5 mm M3.5 × 0.6 mm M4 × 0.7 mm M5 × 0.8 mm M6 × 1.00 mm M8 × 1.25 mm M10 × 1.5 mm M12 × 1.75 mm	1 13/16" 1 15/16" 2" 2 1/8" 2 3/8" 2 1/2" 2 23/32" 2 15/16" 3 3/8"	Metric	2, 3	D3, D4, D5, D6	2.05 mm 2.5 mm 2.9 mm 3.3 mm 4.2 mm 5 mm 6.7 mm 8.5 mm 10.2 mm	Gold-Oxide High-Speed Steel	Metal Case	00000000	0000000

Hex-Shank Tap and Drill Bit Sets for Drills and Powered Screwdrivers

All taps and drill bits have a hex shank for direct connection to tools such as drills and power screwdrivers. They're made of high-speed steel and are for use on most metal and plastic. Taps have a plug chamfer with 3-5 chamfered cutting threads, so they're suitable for start-to-finish tapping, but they’ll need space at the bottom of closed-end holes for chips to accumulate.

	Chamfer Type	Tap Sizes Included	Overall Lg.	Thread Type	No. of Flutes	Drill Bit Sizes Included	Drill Bit Material	Container Type	Includes		Each
Uncoated High-Speed Steel Tap



	13	Plug	M3 × 0.5 mm M4 × 0.7 mm M5 × 0.8 mm M6 × 1.0 mm M8 × 1.25 mm M10 × 1.5 mm	1 19/64" 1 27/64" 1 35/64" 1 37/64"	Metric	3, 4	2.5 mm 3.3 mm 4.2 mm 5.0 mm 6.8 mm 8.5 mm	Uncoated High-Speed Steel	Plastic Case	Chuck	0000000	0000000

Hex-Bit Taps

You only need one tool to turn these taps and install screws. The _1/4" hex shank fits hand or powered screwdrivers for threading holes. Then switch to a screwdriver bit to finish the job. To tap in hard-to-reach spots, add a bit extension. Taps have straight flutes that are good for most jobs.

High-Speed Steel—The most versatile taps resist heat and wear to stay sharp. They’re good for most metals and plastic.

Uncoated—The economical choice, these won't last as long as coated taps.

Plug Chamfer—Our go-to chamfer type, these thread both through holes and blind holes. The tapered section is shorter than a taper chamfer and longer than bottoming chamfer. As a result, they're easier to turn than bottoming taps but require more force than taper taps.

						Drill Bit				Plug Chamfer
	Thread Size	Thread Lg.	Overall Lg.	Thread Type	No. of Flutes	Size, mm	Decimal Size Equiv.	Shank Type	Hex Shank Size		Each
High-Speed Steel







				Uncoated

				M4 × 0.7 mm	1/2"	1 3/8"	Metric	3	3.3	0.1299"	Hex	1/4"	0000000	000000

Quick-Change Hex Shank Drill Taps for Drills and Screwdrivers

Save time when you need to change drill taps frequently. The grooved shank snaps directly into drills, power screwdrivers, and other tools that accept a 1/4" hex shank. However, they’re not rated for impact drivers. With a drill bit point to drive into the workpiece, these taps can drill and tap holes in a single step. They’re made of high-speed steel and are for use on most metal and plastic.

Their spiral flutes keep chips clear by drawing them back toward the tap and out of the hole. All have a plug chamfer with 3-5 chamfered cutting threads, so they’re suitable for start-to-finish tapping.

Uncoated High-Speed Steel—Uncoated taps are strong enough for most tapping jobs but have the shortest tool life.

Titanium Nitride (TiN)-Coated High-Speed Steel—Titanium Nitride (TiN) coated taps resist heat and wear better than uncoated taps, letting them last up to twice as long.

	Thread			Drill Bit								Plug Chamfer
	Size	Lg.	Overall Lg.	Size, mm	Decimal Size Equiv.	Point Angle	Flute Type	No. of Flutes	Thread Type	Pitch Dia. Limit	Hex Shank Size		Each
Uncoated High-Speed Steel



		M4 × 0.7 mm	1/2"	3 1/8"	3.3	0.1299"	118°	Spiral	2	Metric	D4	1/4"	0000000	000000


		Titanium Nitride (TiN)-Coated High-Speed Steel



				M4 × 0.7 mm	1/2"	3 1/8"	3.3	0.1299"	118°	Spiral	2	Metric	D4	1/4"	00000000	00000

Drill Taps

Spiral Flute

Drill holes and cut threads without switching tools. Made of high-speed steel, these taps are for use on most metal and plastic. The square shank is compatible with tap holders for drill presses and milling machines. All have a plug chamfer with 3-5 chamfered cutting threads, so they're suitable for start-to-finish tapping.

Uncoated High-Speed Steel—Uncoated taps are strong enough for most tapping jobs but have the shortest tool life.

Titanium Nitride (TiN)-Coated High-Speed Steel—Titanium Nitride (TiN) coated taps resist heat and wear better than uncoated taps, letting them last up to twice as long.

Spiral Flute—Taps with spiral flutes keep chips clear by drawing them back toward the tap and out of the hole.

	Thread			Drill Bit							Plug Chamfer
	Size	Lg.	Overall Lg.	Size, mm	Decimal Size Equiv.	Point Angle	Flute Type	No. of Flutes	Thread Type	Pitch Dia. Limit		Each
Uncoated High-Speed Steel



		M4 × 0.7 mm	1/2"	2 1/8"	3.3	0.1299"	110°	Spiral	2	Metric	D4	0000000	000000


		Titanium Nitride (TiN)-Coated High-Speed Steel



				M4 × 0.7 mm	1/2"	2 1/8"	3.3	0.1299"	118°	Spiral	2	Metric	D4	0000000	00000

Thread-Locking Threaded Inserts with Installation Tools

What you need to add or repair threads quickly in parts under stress or vibration. These inserts come with a closed-end tap, a drill bit, and an installation bit. Also known as E-Z Lok, they have Loctite® adhesive already applied, and the adhesive reaches full strength after 72 hours.

Standard Wall—Stronger than thin-wall inserts, these are your go-to choice for threading most holes.

Black Phosphate-Coated Steel—These inserts resist occasional moisture.

	Drill Bit Size, mm	For Max. Hole Dia., mm	Drive Style	No. of Inserts Included		Each
Standard Wall







	Black Phosphate-Coated Steel

	M4 x 0.7 mm	M8 x 1.25 mm	7.5	6.9	6.9	Slotted	10	000000000	000000

Helical Threaded Inserts with Installation Tools

Drill Bit, Installation Tool

and Through-Hole Tap

Quickly restore stripped threads—these inserts come with through-hole taps and installation tools.

Pronged—The prong attaches to an installation tool for precise control as you drive inserts in. Remove the prong with a punch or break-off tool before inserting a screw.

18-8 Stainless Steel—The choice for wet and outdoor environments, these inserts resist rust and mild chemicals.

	For Max. Hole Dia.	No. of Inserts Included	Includes		Each
Pronged







	18-8 Stainless Steel

	M4 x 0.7 mm	4	4.2	0.172"	10	Drill Bit Installation Tool Through-Hole Tap	000000000	000000


	M4 x 0.7 mm	6	4.2	0.172"	10	Drill Bit Installation Tool Through-Hole Tap	000000000	00000
	M4 x 0.7 mm	8	4.2	0.172"	10	Drill Bit Installation Tool Through-Hole Tap	000000000	00000
	M4 x 0.7 mm	10	4.2	0.172"	10	Drill Bit Installation Tool Through-Hole Tap	000000000	00000
	M4 x 0.7 mm	12	4.2	0.172"	10	Drill Bit Installation Tool Through-Hole Tap	000000000	00000

Helical Threaded Insert Assortments with Installation Tools

Repair damaged threads or create new ones. These convenient assortments include helical inserts, an installation tool for each thread size, a drill bit, and a tap. The inserts are also known as Heli-Coil inserts.

Pronged—The prong attaches to an installation tool for precise control as you drive inserts in. Remove the prong with a punch or break-off tool before inserting a screw.

18-8 Stainless Steel—The choice for wet and outdoor environments, these inserts resist rust and mild chemicals.

	Drill Bit Size	For Max. Hole Dia.		Each
Pronged







	18-8 Stainless Steel

	18	Drill Bit Installation Tool M4×0.7 mm Thread × 4 mm Installed Lg. (6 Each) M4×0.7 mm Thread × 6 mm Installed Lg. (6 Each) M4×0.7 mm Thread × 8 mm Installed Lg. (6 Each) Prong Break-Off Tool Through-Hole Tap	Coarse	11/64"	0.172"	000000000	000000