M30 Taps | McMaster-Carr

Taper Chamfer—Good for both starting holes and threading through holes. These taps have the longest taper to gradually engage with the material, reducing the force needed to turn them. They can't reach the bottom of blind holes, however, so you will likely need to finish with a bottoming-chamfer tap.

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.

Bottoming Chamfer—Cut all the way to the bottom of blind holes with taps that have the shortest taper. Since these require the most force to turn, they’re often used to finish holes started by taper- or plug-chamfer taps.

Number of Flutes—Taps with fewer flutes have more space to capture chips, so you won’t have to clear them as often. However, they can be more difficult to keep straight in the hole.

Taps Sold as Sets—Include one tap of each chamfer type.

	Taps															Taps Sold as Sets
						Drill Bit				Taper Chamfer		Plug Chamfer		Bottoming Chamfer
	Thread Size	Thread Lg.	Overall Lg.	Thread Type	No. of Flutes	Size	Decimal Size Equiv.	Shank Type	Mfr.		Each		Each		Each	No. of Taps		Each
High-Speed Steel







				Uncoated

				M30 × 1.5 mm	1 1/2"	4"	Metric	6	1 1/8"	1.125"	Square	GWS	26015A381	0000000	26015A382	0000000	26015A383	0000000	3	26015A459	0000000


				M30 × 2 mm	2 9/16"	5 7/16"	Metric	4	28 mm	1.1023"	Square	GWS	26015A247	000000	26015A248	000000	26015A249	000000	3	26015A461	000000
				M30 × 3.5 mm	2 9/16"	5 7/16"	Metric	4	1 1/32"	1.0313"	Square	Cleveland	8305A69	000000	8305A71	000000	8305A72	000000	3	8305A548	000000

Tap Sets

These sets include a variety of taps for threading holes so screws, bolts, and rods fit snugly.

High-Speed Steel—Single Thread Size Sets

Taper, Plug, and Bottoming

Chamfer Set

The most versatile taps resist heat and wear to stay sharp. They’re good for most metals and plastic. These sets include one of each chamfer type: Taper for starting holes and threading through holes; plug for through holes and blind holes; and bottoming for cutting the closest to the bottom of any hole.

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

								Taper Chamfer, Plug Chamfer, Bottoming Chamfer
	No. of Pieces	Thread Size	Thread Type	Container Type	No. of Flutes	Shank Type	Mfr.		Each
Uncoated



		3	M30 × 1.5 mm	Metric	Plastic Case	6	Square	GWS	26015A459	0000000


		3	M30 × 2 mm	Metric	Plastic Case	4	Square	GWS	26015A461	000000
		3	M30 × 3.5 mm	Metric	Plastic Case	4	Square	Widia	8305A548	000000

Chip-Clearing Taps for Steel and Stainless Steel

Spiral-Point Flute for Through Holes

Made of a high-vanadium alloy, these taps are harder and more wear-resistant than other high-speed steel taps. The flute design prevents buildup to protect the quality of the threads and avoid damage to the tap. Since you don’t need to reverse these taps to extract chips, they also create threads faster.

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

Black Oxide—The dark finish increases wear resistance and reduces friction to improve chip flow, so these taps can last 50% longer than uncoated taps.

Spiral-Point Flute for Through Holes—Push chips ahead of the tap and out of through holes. Also known as gun taps.

Plug Chamfer—Our go-to chamfer type. With a longer taper than a bottoming chamfer, they are easier to turn but won't thread as close the bottom of a hole.

					Drill Bit				Spiral-Point Flute for Through Holes
	Thread Size	Thread Lg.	Overall Lg.	Thread Type	Size, mm	Decimal Size Equiv.	Shank Type	Mfr.	Chamfer Type	No. of Flutes		Each
High-Speed Steel







				Black Oxide

				M30 × 1.5 mm	1 7/32"	5 7/16"	Metric	28.5	1.122"	Square	Widia	Plug	4	2671A19	0000000


				M30 × 3.5 mm	1 7/32"	5 7/16"	Metric	26.5	1.0433"	Square	Widia	Plug	4	2671A21	000000

Chip-Clearing Taps

Spiral-Point Flute for Through Holes

Remove long, stringy chips to produce cleaner threads than standard taps. The flute design prevents buildup to protect the quality of the threads and avoid damage to the tap. Since you don’t need to reverse these taps to extract chips, they also create threads faster.

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

Black Oxide—The dark finish increases wear resistance and reduces friction to improve chip flow, so these taps can last 50% longer than uncoated taps.

Spiral-Point Flute for Through Holes—Push chips ahead of the tap and out of through holes. Also known as gun taps.

Plug Chamfer—Our go-to chamfer type. With a longer taper than a bottoming chamfer, they are easier to turn but won't thread as close the bottom of a hole.

					Drill Bit				Spiral-Point Flute for Through Holes
	Thread Size	Thread Lg.	Overall Lg.	Thread Type	Size	Decimal Size Equiv.	Shank Type	Mfr.	Chamfer Type	No. of Flutes		Each
High-Speed Steel







				Black Oxide

				M30 × 1.5 mm	1.22"	5.44"	Metric	1 1/8"	1.125"	Square	Widia	Plug	4	2523A92	0000000

Helical Insert Taps

Match the size of helical inserts so they fit tightly when installed in the hole.

High-Speed Steel—These taps resist heat and wear to stay sharp.

Plug Chamfer—Our go-to chamfer type. With a longer taper than a bottoming chamfer, they are easier to turn but won't thread as close the bottom of a hole.

						Drill Bit				Plug Chamfer		Bottoming Chamfer
	For Insert Size	Thread Lg.	Overall Lg.	For Insert Thread Type	No. of Flutes	Size	Decimal Size Equiv.	Shank Type	Mfr.		Each		Each
High-Speed Steel







				Uncoated

				M30	1 1/2"	4"	Metric	4	1 7/32"	1.2188"	Square	Chrislynn Inserts	92450A345	0000000	91709A350	0000000

Tap and Drill Bit Cabinets

Drawers and labeled compartments provide space for keeping tools organized. Taps and drill bits are not included.

				Overall
	Holds Tap Sizes	No. of Compartments	No. of Drawers	Wd.	Dp.	Ht.	Material	Lock Type	No. of Keys Included		Each
For Taps







				For Inch, Metric Taps

				1/4"-20 to 1 1/2"-12 2-56 to 12-28 M2.5 × 0.45 mm to M30 × 3.5 mm	152	4	26"	12"	12 1/2"	Steel	Keyed	2	2551A72	0000000

Helical Threaded Inserts with Installation Tools

Installation Tool and

Through-Hole Tap

Quickly restore stripped threads—these inserts come with through-hole taps and installation tools. The tough coils on these inserts expand once installed to anchor in a tapped hole.

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

	M30 x 3.5 mm	45	1 1/4"	1.250"	5	Installation Tool Through-Hole Tap	91732A972	0000000

Impact Wrench Taps

Thread holes 15 times faster than by hand. Made with an oversized shank and hardened high-speed steel, these taps are built to handle the high torque of impact wrenches to cut material quickly. Your wrench’s rapid hammering keeps these taps moving forward for smooth, continuous cutting. Those rapid blows also help break and clear chips as you cut, so you don’t need to pause and reverse, even in large holes and tough materials. This also means the tap is less likely to jam on chips and snap.

You’ll need a VersaDrive chuck (sold separately) to install these taps into your impact wrench. You can also get chucks for impact drivers (sold separately).

Titanium Nitride (TiN) Coated—Run at higher speeds and last twice as long as uncoated taps.

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







				Titanium Nitride (TiN) Coated

				M30 × 3.5 mm	1 7/8"	5 1/8"	Metric	4	26.5	1.0433"	VersaDrive Hex	7/16"	Holemaker Technology	9618N32	0000000

Accessories for Taps

Required Chucks

Quick-Change

Strong-Hold

These chucks mount directly onto the square drive of your impact wrench. They work with any tool with a VersaDrive hex shank, so you don’t need to swap chucks to use drill bits, reamers, and other tools.

Quick-Change Pull-Back Tool Release—Require just one hand to load. Push your tool in the chuck until you hear the ball detents click into place. To remove your tool, pull back the collar.

Strong-Hold Push-Forward Tool Release—Hold cutting tools more securely than quick-change chucks. To insert and remove cutting tools, you must push a collar forward. Since impact force drives your cutting tool the opposite way, it can’t come loose from the chuck while you work.

Manganese Phosphate-Coated Steel—The coating on these chucks prevents rust.

	For Shank
For Square Drive Size	Type	Size	Overall Lg.	Material	Includes		Each







			Quick-Change Pull-Back Tool Release

			1/2"	VersaDrive Hex	7/16"	2 5/32"	Black-Oxide Steel	Retaining Ring, Retention Pin	9589N112	000000




					Strong-Hold Push-Forward Tool Release

					3/8"	VersaDrive Hex	7/16"	2"	Manganese Phosphate-Coated Steel	Retaining Ring, Retention Pin	9589N111	000000


					1/2"	VersaDrive Hex	7/16"	2 5/32"	Manganese Phosphate-Coated Steel	Retaining Ring, Retention Pin	9589N113	000000
					3/4"	VersaDrive Hex	7/16"	2 3/8"	Manganese Phosphate-Coated Steel	Retaining Ring, Retention Pin	9589N114	000000

Optional Extensions

Extend your cutting tool’s reach. These extensions attach to your chuck and accept any tool with a VersaDrive hex shank.

		For Shank		Shank
	Overall Lg.	Type	Size	Type	Size	OD	Material		Each
Quick-Change Pull-Back Tool Release



		5"	VersaDrive Hex	7/16"	VersaDrive Hex	7/16"	1 7/64"	Black-Oxide Steel	9589N115	000000


		12"	VersaDrive Hex	7/16"	VersaDrive Hex	7/16"	1 7/64"	Black-Oxide Steel	9589N116	00000