M4.5 Taps | McMaster-Carr

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.

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

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



		3	M4.5 × 0.75 mm	Metric	Plastic Case	4	Square	8305A522	000000


		Titanium Nitride (TiN) Coated



				3	M4.5 × 0.75 mm	Metric	Plastic Case	4	Square	26475A16	00000

High-Speed Steel—Multiple Thread Size Sets

Plug Chamfer Set

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	Shank Type		Each
Uncoated



		10	1 each of sizes M3 × 0.50 mm, M3.5 × 0.60 mm, M4 × 0.70 mm, M4.5 × 0.75 mm, M5 × 0.80 mm; M6 × 1.00 mm, M8 × 1.25 mm, M10 × 1.50 mm, M12 × 1.75 mm, and M16 × 2.00 mm	Metric	Metal Case	Square	25555A81	0000000

Tap Extractor Sets for Screw Thread Taps

To extract taps of different sizes, these sets include multiple extractors. Fingers on the extractor grip the flutes on a broken tap. Use with a tap wrench to remove taps with straight flutes from the workpiece.

No. of Pieces	For Three-Flute Tap Size	For Four-Flute Tap Size	Material	Container Type	For Number of Tap Flutes		Each
6	—	No. 10, No. 12, No. 14, 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 7/16", 15/32", 1/2", M4.5, M5, M5.5, M6, M6.3, M7, M8, M9, M10, M11, M12, M12.5	Steel	Plastic Case	4	2561A421	0000000
11	No. 5, No. 6, 1/8", M3, M3.5	No. 8, No. 10, No. 12, No. 14, 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 7/16", 15/32", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16", 1", M4, M4.5, M5, M5.5, M6, M6.3, M7, M8, M9, M10, M11, M12, M12.5, M14, M16, M18, M19, M20, M22, M24, M25	Steel	Plastic Case	3, 4	2561A424	000000
13	No. 4, No. 5, No. 6, 1/8", M3, M3.5	No. 8, No. 10, No. 12, No. 14, 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 7/16", 15/32", 1/2", 9/16", 5/8", 11/16", 3/4", M4, M4.5, M5, M5.5, M6, M6.3, M7, M8, M9, M10, M11, M12, M12.5, M14, M16, M18, M19, M20	Steel	Plastic Case	3, 4	2561A425	000000
15	No. 4, No. 5, No. 6, 1/8", M3, M3.5	No. 8, No. 10, No. 12, No. 14, 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 7/16", 15/32", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16", 1", M2, M4, M4.5, M5, M5.5, M6, M6.3, M7, M8, M9, M10, M11, M12, M12.5, M14, M16, M18, M19, M20, M22, M24, M25	Steel	Plastic Case	3, 4	2561A426	000000

Taps

Cut threads into holes so screws, bolts, and rods fit snugly. Our basic 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.

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

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, mm	Decimal Size Equiv.	Shank Type		Each		Each		Each	No. of Taps		Each
High-Speed Steel







				Uncoated

				M4.5 × 0.75 mm	7/8"	2 3/8"	Metric	4	3.7	0.1456"	Square	8305A15	000000	8305A35	000000	8305A55	000000	3	8305A522	000000




						Titanium Nitride (TiN) Coated

						M4.5 × 0.75 mm	7/8"	2 3/8"	Metric	4	3.7	0.1456"	Square	26475A37	00000	26475A53	00000	26475A93	00000	3	26475A16	00000

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.

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

Titanium Nitride (TiN) Coated—Run at higher speeds and last twice as long as 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	Chamfer Type	No. of Flutes		Each
High-Speed Steel







				Uncoated

				M4.5 × 0.75 mm	7/8"	2 3/8"	Metric	3.7	0.1456"	Square	Plug	2	8302A15	000000




						Titanium Nitride (TiN) Coated

						M4.5 × 0.75 mm	7/8"	2 3/8"	Metric	3.7	0.1456"	Square	Plug	2	2703A721	00000

Tap Extractors for Screw Thread Taps

Fingers on the extractor grip the flutes on a broken tap. Use with a tap wrench to remove taps with straight flutes from the workpiece without damaging the surrounding threads.

Tap Extractors						Replacement Tap Extractor Fingers
For Tap Size	Material	Square Shank Size	Choose a Number of Tap Flutes		Each	Choose a Number of Tap Flutes	Pkg. Qty.		Pkg.
No. 10, 3/16", M4.5, M5	Steel	0.11"	2 , 3 , 4	2561A525	000000	2 , 3 , 4	12	2561A551	000000

Left-Hand Thread Taps

Create left-hand threads that prevent counter-clockwise rotating parts, such as flywheels and propellers, from loosening and spinning off. These 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.

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







				Uncoated

				M4.5 × 0.75 mm	7/8"	2 3/8"	Metric	4	3.7	0.1457"	Square	26565A914	000000

Long-Reach Taps

Thread holes that are hard to access or where obstructions make it difficult to turn a tap wrench. About twice as long other taps, these get you inside machines or through assemblies such as pulleys and belts. They 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.

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







				Uncoated

				M4.5 × 0.75 mm	7/8"	6"	Metric	4	3.8	0.1535"	Square	0.194"	2582A421	000000