XR4 Series End Mills

Geometry Specifications:

Axial: Positive
Radial: Negative
Lead: 45°

XR4 Series NEW .50 IC Inserted End Mills are a Multi-purpose positive/negative geometry cutter that optimizes horsepower. Also, this cutter is designed to perform at accelerated spindle velocities. To extend its application range (value), the pockets are designed to accept either the round or the octagon inserts. Staggered insert spacing counters harmonix vibration (chatter) on 4.00 diameter and up only (if applicable). Inserts available in NEW PVD AlTin coated grades 586XRm and 606jRm.

**XR4 End Mill - Dimensional Specifications - click for Kits**
Product Number	D	OD	S	L	A	DOC	Insert	Teeth
XRE1.25PN45OE4RW.75	1.250	1.55	0.750	4.25	45° R.250	.140 R.250	OECH-432 RECH-43	3
XRE1.50PN45OE4RW.75	1.500	1.80	0.750	4.25	45° R.250	.140 R.250	OECH-432 RECH-43	3
XRE2.00PN45OE4RW1.00	2.000	2.30	1.000	4.50	45° R.250	.140 R.250	OECH-432 RECH-43	4
XRE2.00PN45OE4RW1.25	2.000	2.30	1.250	4.50	45° R.250	.140 R.250	OECH-432 RECH-43	4
XRE2.50PN45OE4RW1.25	2.500	2.79	1.250	4.50	45° R.250	.140 R.250	OECH-432 RECH-43	5

Milling Cutter Nomenclature

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

.500 x .188	OECH-432	OECH-432W520	OECH-432-10F	RECH-43W520	RECH-43-10F	3605-0001-0033	1557-TX15

Insert Nomenclature

**Starting Machining Parameters**
Material	SFPM	FPT	Primary	Secondary
PH Type Stainless Steel 17-4, 15-5, 13-8	500-1200	.003-.015	OECH-432W520 GR 606jRm	OECH-432W520 GR LTC-14
Austenitic Stainless Steel 302, 304, 316	400-1350	.003-.015	OECH-432-10F GR 586XRm	OECH-432-10F GR LTC-10
Titanium Alloy 3A1-2.5V, 5A16n-2Zr-1mo, 6A14V	120-325	.003-.015	RECH-43-10F GR 586XRm	RECH-43-10F GR LTC-10
Carbon Steel 1018, 1020, 1215	600-1500	.005-.020	OECH-432W520 GR 606jRm	OECH-432W520 GR LTC-14
Alloyed Steel 4130, 4340, 6150	400-1200	.005-.020	OECH-432W520 GR 606jRm	OECH-432W520 GR LTC-14
Tool Steel	350-1000	.005-.020	OECH-432W520 GR 606jRm	OECH-432W520 GR LTC-14
Nickel Based Material K-Monel, Inconel 625, A286	100-650	.003-.015	RECH-43-10F GR 586XRm	RECH-43-10F GR LTC-10
Aluminum 2024, 6061, 7072	900-4000	.003-.015	OECH-432-10F GR 586XRm	OECH-432-10F GR LTX