8-36 Drill Bits | McMaster-Carr

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	Number of Drill Bits Number of Drill Bits

	System of Measurement System of Measurement

Inch

	Shank Type Shank Type


Round	Hex

Square

	Component Component

Tap

Drill Bit

	For Use On For Use On

	Thread Size Thread Size	Show

8-36

	Thread Size Thread Size	Hide

	Thread Length Thread Length

	Drill Bit Material Drill Bit Material

High-Speed Steel

	Number of Flutes Number of Flutes

	2		3
	4

	Flute Type Flute Type

	Straight
	Spiral
	Spiral Point

	Number of Pieces Number of Pieces

	Container Type Container Type

Metal Case

	Hex Shank Size Hex Shank Size

	Drill Bit Finish Drill Bit Finish

Uncoated

Black Oxide

Gold Oxide

	Application Application

Through-Hole Threading

Closed-End Hole Threading

	Thread Type Thread Type

UNC

UNF

	Material Material

High-Speed Steel

	Maximum Tapping Depth Maximum Tapping Depth

	Individual/Set Individual/Set

Individual

Set

	Number of Taps Number of Taps

	Pitch Diameter Limit Pitch Diameter Limit

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

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4 Products

Tap and Drill Bit Sets

Set with Metal Case

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

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

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.

Uncoated High-Speed Steel Taps
No. of Pieces	Chamfer Type	Tap Sizes Included	No. of Flutes	Drill Bit Sizes Included	Drill Bit Material	Container Type		Each
18	Plug	1 each of sizes: 6-40 8-36 10-24 10-32 1/4"-28 5/16"-24 3/8"-24 7/16"-20 1/2"-20	3, 4	25/64" 29/64" 33 ga. 29 ga. 25 ga. 21 ga. 3 ga. I Q	Uncoated High-Speed Steel	Metal Case	0000000	0000000
36	Plug	1 each of sizes: 6-32 6-40 8-32 8-36 10-24 10-32 12-24 12-28 1/4"-20 1/4"-28 5/16"-18 5/16"-24 3/8"-24 3/8"-16 7/16"-14 7/16"-20 1/2"-13 1/2"-20	3, 4	1 each of sizes: 25/64" 27/64" 29/64" 5/16" 36 ga 33 ga. 25 ga. 21 ga. 16 ga. 15 ga. 7 ga. 3 ga. F I Q U 2 each of size 29 ga.	Black Oxide High-Speed Steel	Metal Case	0000000	000000

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.

Gold Oxide High-Speed Steel
No. of Pieces	Chamfer Type	Tap Sizes Included	Thread Type	No. of Flutes	Pitch Dia. Limit	Drill Bit Sizes Included	Drill Bit Material	Container Type		Each
18	Plug	6-40 8-36 10-24 10-32 1/4"-28 5/16"-24 3/8"-24 7/16"-20 1/2"-20	UNF	2, 3	H2, H3	29/64" 25/64" 33 ga. 29 ga. 25 ga. 21 ga. 3 ga. I Q	Gold Oxide High-Speed Steel	Metal Case	00000000	0000000

Combination Drill Bit/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.

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

Uncoated taps are strong enough for most tapping jobs but have a shorter tool life.

For technical drawings and 3-D models, click on a part number.

Inch

Thread			Drill Bit						Plug Chamfer
Size	Lg.	Overall Lg.	Size	Decimal Size Equivalent	Point Angle	Flute Type	Thread Type	Pitch Dia. Limit		Each
Uncoated High-Speed Steel
8-36	1/2"	2 1/8"	29 ga.	0.136"	110°	Spiral	UNF	H3	0000000	000000