160mm Long Drill Bits | McMaster-Carr

Extended Length—Drill through panels and thick workpieces with our longest 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.

Titanium Nitride (TiN) Coated—Drill at higher speeds and last longer than uncoated and oxide-coated bits, especially on tough materials like hardened steel and nickel.

Uncoated—The most economical option, uncoated bits perform best when used on low-carbon steel and aluminum. Polished to reduce friction, they're also known as bright finish bits.

					Shank
	Drill Bit Size, mm	Decimal Size Equiv.	Overall Lg., mm	Max. Drilling Dp., mm	Type	Size	Drill Bit Point Type		Each
Jobbers' Length







				Black Oxide

				13.5	0.5315"	160	81	Round	13.5 mm	Standard	2958A172	000000


				14.0	0.5512"	160	80	Round	14 mm	Standard	2958A173	00000




						Titanium Nitride (TiN) Coated

						14.0	0.5512"	160	80	Round	14 mm	Standard	8950A68	00000


						Extended Length







										Black Oxide

										2.5	0.0984"	160	95	Round	2.5 mm	Standard	88455A36	00000


										3.0	0.1181"	160	94	Round	3 mm	Standard	88455A37	00000
										3.3	0.1299"	160	93.4	Round	3.3 mm	Standard	88455A38	00000
										3.5	0.1378"	160	92.9	Round	3.5 mm	Standard	88455A39	00000
										4.0	0.1575"	160	91.9	Round	4 mm	Standard	88455A42	00000
										5.0	0.1969"	160	89.9	Round	5 mm	Standard	88455A44	00000




												Uncoated

												1.5	0.0591"	160	96.9	Round	1.5 mm	Standard	88455A32	00000


												2.0	0.0787"	160	96	Round	2 mm	Standard	88455A34	00000

Cobalt Steel Drill Bits

Jobbers' Length

Round Shank

Split

Tough and wear resistant, cobalt steel bits last at least twice as long as high-speed steel. They can also run up to 25% faster at higher temperatures without being damaged on hard materials, such as nickel.

Jobbers' Length—These bits have the balance of rigidity and length needed for most applications.

Titanium Aluminum Nitride (TiAlN) Coated—The hardest and most wear-resistant coating, especially at high temperatures. These bits are best for hard and abrasive materials, such as iron, titanium, and fiberglass.

					Shank
	Drill Bit Size, mm	Decimal Size Equiv.	Overall Lg., mm	Max. Drilling Dp., mm	Type	Size	Drill Bit Point Type		Each
Jobbers' Length







				Titanium Aluminum Nitride (TiAlN) Coated

				14.0	0.5512"	160	87	Round	14 mm	Split	2753A184	0000000

High-Speed Steel Drill Bits for Plastic

The precision-ground, 60° point penetrates gradually to prevent cracking and chipping. It also reduces heat that can deform the material. Use these bits for drilling into acrylic, laminate, and other plastics. They're made of wear-resistant high-speed steel.

Jobbers' Length About Jobbers' Length

					Shank
	Drill Bit Size, mm	Decimal Size Equiv.	Overall Lg., mm	Max. Drilling Dp., mm	Type	Size, mm	Point Angle	Drill Bit Point Type		Each
Uncoated



		13.5	0.5315"	160	108	Round	13.5	60°	Standard	27465A434	000000


		14	0.5512"	160	108	Round	14	60°	Standard	27465A435	00000

Chip-Clearing High-Speed Steel Drill Bits


Jobbers' Length Parabolic Flute Round Shank	Split

With flutes that lift chips out of the hole, you don't have to stop drilling to clear these bits manually. They improve coolant flow to dissipate heat and prevent clogs that can damage the bit and ruin the hole. High-speed steel is good for general purpose drilling in most metals.

Parabolic Flute—A U-shaped groove on the flutes cuts faster and clears chips more quickly than high-helix bits, so these are better for drilling deeper holes.

Jobbers' Length—These bits have the balance of rigidity and length needed for most applications.

Uncoated—The most economical option, uncoated bits perform best when used on low-carbon steel and aluminum. Polished to reduce friction, they're also known as bright finish bits.

						Shank
	Drill Bit Size, mm	Decimal Size Equiv.	Overall Lg., mm	Max. Drilling Dp., mm	Flute Type	Type	Size, mm	Drill Bit Point Type		Each
Jobbers' Length







				Uncoated

				13.5	0.5315"	160	108	Parabolic	Round	13.5	Split	2754A88	000000


				14.0	0.5512"	160	108	Parabolic	Round	14	Split	2754A89	00000

Carbide Rounded-Edge Square End Mills for Aluminum, Brass, and Bronze


Rounded-Edge-Square Cut Style

With a diamondlike coating (DLC), these end mills are sharp enough to cut aluminum, brass, and bronze. Often used for slotting and pocketing cuts in mold and die making, they have a 90° profile and rounded corners, which reduce flute breakage and chipping. Also known as corner radius end mills. All are center cutting, allowing plunge cuts into a surface.

Made of solid carbide, these end mills are harder, stronger, and more wear resistant than high-speed steel and cobalt steel for the longest life and best finish on hard material. Their extreme hardness means they are brittle, so a highly rigid setup, such as a CNC machine, is necessary to prevent the end mill from breaking.

	Mill, mm
	Dia.	Dia. Tolerance	Shank Dia., mm	Lg. of Cut, mm	Corner Cut Radius, mm	Overall Lg., mm	Flute Spacing	Helix Angle	For Use On	End Mill Type	Cut Style		Each
Diamondlike Carbon (DLC)-Coated Carbide







				3 Flutes

				20	-0.02 to 0	20	100	1	160	Equal	35°	Aluminum, Brass, Bronze, Copper	Center Cutting	Rounded-Edge Square	9149N17	0000000


				20	-0.02 to 0	20	100	1.5	160	Equal	35°	Aluminum, Brass, Bronze, Copper	Center Cutting	Rounded-Edge Square	9149N18	000000
				20	-0.02 to 0	20	100	3	160	Equal	35°	Aluminum, Brass, Bronze, Copper	Center Cutting	Rounded-Edge Square	9149N19	000000
				20	-0.02 to 0	20	100	4	160	Equal	35°	Aluminum, Brass, Bronze, Copper	Center Cutting	Rounded-Edge Square	9149N21	000000
				20	-0.02 to 0	20	100	5	160	Equal	35°	Aluminum, Brass, Bronze, Copper	Center Cutting	Rounded-Edge Square	9149N22	000000