XR90 End Mills

Geometry Specifications:

Axial: Positive
Radial: Negative

XR90 End Mills are a Multi-purpose positive/negative geometry cutter that optimizes horsepower utilization. This allows you to get the most from your low horsepower machines. Also, this cutter is designed to perform at accelerated spindle speeds. To extend its application range (value), the pockets are designed to accept either the round or the octagon inserts. Non-rhythmic insert spacing counters harmonic vibration (chatter). Inserts are available in PCD.

**XR90 End Mill - Dimensional Specifications**
Product Number	D	OD	S	L	A	DOC	Insert	Teeth
XRE1.50PN90SE5R.75	1.50	1.50	0.75	4.50	0°	.540	WSECH-534R	2
XRE1.50PN90SE5R1.00	1.50	1.50	1.00	4.50	0°	.540	WSECH-534R	2
XRE2.00PN90SE5R1.25	2.00	2.00	1.25	4.50	0°	.540	WSECH-534R	3

Milling Cutter Nomenclature

**Parts**
Insert I.C. & Thickness	Insert Number	Torx Screw	Lock Screw Wrench

.625 x .187	WSECH-534R	3605-0001-0023	1557-TX20

Insert Nomenclature

**Starting Machining Parameters**
Material	SFPM	FPT	Primary	Secondary
PH Type Stainless Steel 17-4, 15-5, 13-8	500-1200	.003-.015	WSECH-534-10F GR 606jRm	WSECH-534W520 GR LTC-14
Austenitic Stainless Steel 302, 304, 316	400-1350	.003-.015	WSECH-534-10F GR 586XRm	WSECH-534W520 GR LTC-10
Titanium Alloy 3A1-2.5V, 5A16n-2Zr-1mo, 6A14V	120-325	.003-.015	WSECH-534-10F GR 586XRm	WSECH-534-10F GR LTC-10
Carbon Steel 1018, 1020, 1215	600-1500	.005-.020	WSECH-534W520 GR 606jRm	WSECH-534W520 GR LTC-14
Alloyed Steel 4130, 4340, 6150	400-1200	.005-.020	WSECH-534W520 GR 606jRm	WSECH-534W520 GR LTC-14
Tool Steel	350-1000	.005-.020	WSECH-534W520 GR 606jRm	WSECH-534W520 GR LTC-14
Nickel Based Material K-Monel, Inconel 625, A286	100-50	.003-.015	WSECH-534-10F GR 586XRm	WSECH-534-10F GR LTC-10
Aluminum 2024, 6061, 7072	900-4000	.003-.015	WSECH-534-10F GR LTC-10	WSECH-534-10F GR LTC-10