30.0 mm Drill Bits | McMaster-Carr

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3 Products

Drill Bits

Cut holes in a variety of metals, from the softest aluminum to the hardest steel.

High-Speed Steel Jobbers' Length

Morse Taper Shank

Standard

Our basic drill bit material is also the most versatile. These jobbers' bits have the balance of rigidity and length needed for most applications.

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

Morse Taper Shank—Insert directly into the tapered spindle on machines such as drill presses and lathes.

Standard Point—Good for general purpose drilling. You’ll need to make a pilot hole to center the bit.

	Max. Drilling Dp., mm	Flute Type	Shank Type	Drill Bit Point Type	No. of Flutes	Specs. Met	Machine Taper No.		Each
Black Oxide





	Metric
	30.0	1.181"	296	120	Spiral	Morse Taper	Standard	2	DIN 345	Morse 3	0000000	0000000

Reduced-Shank Drill Bits

Cut large holes with drill presses and portable drills that have a standard-size chuck. The shank on these bits has a smaller diameter than the cutting tip. Also known as Silver and Deming bits.

High-Speed Steel Extended Length

Spiral Flute

Standard

Drill through walls and thick workpieces with our longest high-speed steel bits. Their length is good for creating deep holes but makes them less rigid than other bits. As a result, they are more prone to wobbling or breaking, especially when drilling hard materials.

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

Standard Point—Good for general purpose drilling. You’ll need to make a pilot hole to center the bit.

						Shank
	Drill Bit Size, mm	Decimal Size Equiv.	Overall Lg., mm	Max. Drilling Dp., mm	Flute Type	Type	Size	Drill Bit Point Type	No. of Flutes		Each
Black Oxide





				Metric
				30.0	1.1811"	152	53.3	Spiral	Reduced Round	1/2"	Standard	2	0000000	000000

Step Drill Bits

Drill multiple hole sizes using only one bit. These have steps with progressively larger diameters—the deeper they drill, the bigger the hole. Count the steps as you drill to achieve the proper size. These bits also deburr as they cut, so they're good for thin materials like sheet metal and plastic panels.

High-Speed Steel

3-Flat Shank

Standard

Wear and heat resistant, these bits are versatile for use on a range of materials.

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

3-Flat Shank—Three flat sides on the shank prevent the bit from slipping in the chuck of a drill press or portable drill.

Standard Point—Good for general purpose drilling. You’ll need to make a pilot hole to center the bit.

					Shank
	Drill Bit Size, mm	Decimal Size Equiv.	Overall Lg., mm	For Max. Material Thk., mm	Type	Size, mm	Drill Bit Point Type		Each
Black Oxide





				Metric
				6.0, 8.0, 10.0, 12.0, 14.0, 16.0, 18.0, 20.0, 22.0, 24.0, 26.0, 28.0, 30.0, 32.0	0.2362", 0.315", 0.3937", 0.4724", 0.5512", 0.6299", 0.7087", 0.7874", 0.8661", 0.9449", 1.0236", 1.1024", 1.1811", 1.2598", 1.378"	89	2	3-Flat	9.53	Standard	0000000	0000000