ER-Style Lathe Tool Bits

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15 Products

Carbide-Tipped External Threading Lathe Tools

The carbide tip brazed onto the ground steel shank of these tools is more wear resistant than high-speed steel tips. Right-handed tools cut from right to left, left-handed tools cut from left to right, and neutral tools can cut in either direction.

For External Threading


Right-Hand Cutting Direction	Right-Hand Cutting Direction

Right-Hand Cutting Direction—Right-hand and left-hand threading tools are for working close to the chuck.

C2 Carbide—C2 carbide tips are abrasion resistant and less likely to chip or crack than C6 carbide tips when cutting aluminum, brass, and bronze.

C6 Carbide—C6 carbide tips hold up better than C2 carbide tips when making cuts in steel.

Micrograin Carbide—Micrograin carbide tips outperform C2 and C6 carbide tips when cutting difficult-to-machine metal, such as stainless steel or titanium. They provide a good finish on most materials.

	Tool Bit		Shank		Thread				Tip
	Style	Code	Wd.	Ht.	Type	Shape	Overall Lg.	Nose Angle	Lg.	Thk.	For Use On		Each
Right-Hand Cutting Direction







				C2 Carbide

				E	ER-5	5/16"	5/16"	UNC, UNF, UNS	V	2 1/4"	60°	3/8"	3/32"	Aluminum, Brass, Bronze	3367A518	00000


				E	ER-6	3/8"	3/8"	UNC, UNF, UNS	V	2 1/2"	60°	3/8"	3/32"	Aluminum, Brass, Bronze	3367A519	0000
				E	ER-8	1/2"	1/2"	UNC, UNF, UNS	V	3 1/2"	60°	5/8"	1/8"	Aluminum, Brass, Bronze	3367A521	00000
				E	ER-10	5/8"	5/8"	UNC, UNF, UNS	V	4"	60°	5/8"	1/8"	Aluminum, Brass, Bronze	3367A522	00000
				E	ER-12	3/4"	3/4"	UNC, UNF, UNS	V	4 1/2"	60°	3/4"	5/32"	Aluminum, Brass, Bronze	3367A523	00000




						C6 Carbide

						E	ER-5	5/16"	5/16"	UNC, UNF, UNS	V	2 1/4"	60°	3/8"	3/32"	Steel	3367A512	0000


						E	ER-6	3/8"	3/8"	UNC, UNF, UNS	V	2 1/2"	60°	3/8"	3/32"	Steel	3367A513	0000
						E	ER-8	1/2"	1/2"	UNC, UNF, UNS	V	3 1/2"	60°	5/8"	1/8"	Steel	3367A514	00000
						E	ER-10	5/8"	5/8"	UNC, UNF, UNS	V	4"	60°	5/8"	1/8"	Steel	3367A515	00000
						E	ER-12	3/4"	3/4"	UNC, UNF, UNS	V	4 1/2"	60°	3/4"	5/32"	Steel	3367A516	00000




								Micrograin Carbide

								E	ER-5	5/16"	5/16"	UNC, UNF, UNS	V	2 1/4"	60°	3/8"	3/32"	Aluminum, Brass, Bronze, Cast Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium	3367A886	00000


								E	ER-6	3/8"	3/8"	UNC, UNF, UNS	V	2 1/2"	60°	3/8"	3/32"	Aluminum, Brass, Bronze, Cast Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium	3367A887	00000
								E	ER-8	1/2"	1/2"	UNC, UNF, UNS	V	3 1/2"	60°	5/8"	1/8"	Aluminum, Brass, Bronze, Cast Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium	3367A889	00000
								E	ER-10	5/8"	5/8"	UNC, UNF, UNS	V	4"	60°	5/8"	1/8"	Aluminum, Brass, Bronze, Cast Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium	3367A891	00000
								E	ER-12	3/4"	3/4"	UNC, UNF, UNS	V	4 1/2"	60°	3/4"	5/32"	Aluminum, Brass, Bronze, Cast Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium	3367A892	00000