1.7500" Reamers | McMaster-Carr

Unlike standard reamers, which are unusable once they become worn, these can be returned to their original size for finishing holes. After the reamer is worn down, tighten the set screw to expand the diameter, grind the reamer to its original size, and get back to work.

These are not designed for producing holes larger than the listed diameter or for producing holes of various sizes. The set screw should not be loosened.

These reamers fit in the chuck of drill presses, turret lathes, and other machine and power tools, making them the most common shank type.

Straight Flute—The most common flute style, these reamers are suitable for a wide range of applications, but not recommended for holes with a keyway or other breaks in the surface.

Carbide-Tipped Tool Steel—Since these reamers retain a sharper, harder edge at higher temperatures than high-speed steel and cobalt steel, they can be used on hard materials, such as iron, hardened steel, and steel alloys. They aren't as brittle as solid carbide reamers, so they can be used in less rigid setups, such as a hand-held drill.

			Lg.
	Reamer Dia.	Material	Flute	Overall	No. of Flutes	Cutting Dia. Tolerance	Recommended Expansion Limit	For Use On		Each
Straight Flute







				Inch

				1.7500" (1 3/4")	Carbide-Tipped Tool Steel	2 3/8"	13 1/2"	10	0" to 0.0003"	0.015"	Aluminum, Brass, Bronze, Fiberglass, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel, Hardened Steel	0000000	0000000

Arbor Mount, For Round Shanks


Reamer and Arbor (Sold Separately)	Straight Flute

Pair these reamers with a compatible arbor (sold separately) to mount to your drill press or other machine. This setup lets you ream larger holes than other shank types. They’re also known as shell reamers.

Straight Flute—The most common flute style, these reamers are suitable for a wide range of applications, but not recommended for holes with a keyway or other breaks in the surface.

High-Speed Steel—Durable and wear resistant, these are good for general purpose reaming in most materials.

	Reamers										Arbors
				Lg.
	Reamer Dia.	Material	Arbor Hole Dia.	Flute	Overall	No. of Flutes	Cutting Dia. Tolerance	For Use On		Each		Each
Straight Flute







				Inch

				1.7500" (1 3/4")	High-Speed Steel	1"	2 3/4"	3 1/2"	12	-0.0002" to 0.0006"	Aluminum, Brass, Bronze, Iron, Stainless Steel, Steel, Tool Steel, Hardened Steel	0000000	0000000	0000000	000000

Reamers for Hole Alignment

Enlarge holes to correct misalignment and overlap. Misaligned holes often have a narrow entry, so the tapered shape is easier to insert and makes more contact to remove the overlapping material. These are also known as bridge and car reamers.

Hex Shank

Helix Flute

Spiral Flute

The shank fits hex impact sockets, so you can use an impact wrench to both ream the hole and install a fastener.

Helix Flute—Prevent clogging when removing excess material with helix flutes. They also leave a smoother finish than straight flutes.

Spiral Flute—Since these reamers clear chips better than straight flutes, they leave holes with a smoother finish. They're better for holes with breaks in the surface, such as a keyway, because they cut continuously across the breaks instead of moving in and out.

High-Speed Steel—Durable and wear resistant, these are good for general purpose reaming in most materials.

Left-Hand Spiral—These reamers push chips downward as they cut, so they're often used in through holes.

Strong Hold—Magnets on the shank’s end keep these reamers from accidentally falling out of your tool.

					Lg.
	Reamer Dia. (A)	Reamer Dia. (B)	Material	Hex Shank Size	Flute	Overall	Spiral Direction	Cutting Dia. Tolerance	Performance	For Use On		Each
Helix Flute







				Inch

				2.0000" (2")	1.7500"	High-Speed Steel	2"	7 3/8"	11 1/2"	Left Hand	0" to 0.01"	Strong Hold	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	00000000	0000000


				Spiral Flute







								Inch

								1.7500" (1 3/4")	1.3750"	High-Speed Steel	1 1/4"	7 3/8"	11 1/2"	Left Hand	0" to 0.01"	Strong Hold	Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel	0000000	000000