HPSM Series Slab Mills offer through coolant capabilities (only 1.25 diameter and up). Reverse helical flutes stabilize the HPSM during severe machining conditions. Helical flutes ensure smooth cutting action and excellent chip evacuation. Excellent overall length to diameter ratio ensures necessary rigidity and stiffness. CPEH-32.52 type inserts provide 4 indexes for greater economy. Inserts available in NEW PVD TiAIN coated grades 586XRm and 606jRm.

HPSM Series Slab Mills

Geometry Specifications:
Axial: Negative Radial: Negative Shoulder -to 1.50 dia.: 90°
Axial: Negative Radial: Positive Shoulder -over 1.50 dia.: 90°

HPSM Series Slab Mills offer through coolant capabilities (only 1.25 diameter and up). Reverse helical flutes stabilize the HPSM during severe machining conditions. Helical flutes ensure smooth cutting action and excellent chip evacuation. Excellent overall length to diameter ratio ensures necessary rigidity and stiffness. CPEH-32.52 type inserts provide 4 indexes for greater economy. Inserts available in NEW PVD TiAIN coated grades 586XRm and 606jRm.

**HPSM Series - Dimensional Specifications**
Product Number	D	S	L	A	DOC	Insert	Teeth	Eff. Flutes
1.00-1.00HPSMRW4	1.00	1.00	4.16	90°	1.31	CPEH-32.52-4W CPEH-322.52-4W	5 1	2
1.25-1.00HPSMRW5	1.25	1.25	4.16	90°	1.31	CPEH-32.52-4W CPEH-322.52-4W	5 1	2
1.25-2.00HPSMRW5	1.25	1.25	5.03	90°	2.25	CPEH-32.52-4W CPEH-322.52-4W	9 1	2
1.50-1.00HPSMRW6	1.50	1.50	4.50	90°	1.31	CPEH-32.52-4W CPEH-322.52-4W	7 2	3
1.50-2.50HPSMRW6	1.50	1.50	5.81	90°	2.62	CPEH-32.52-4W CPEH-322.52-4W	19 2	3
2.00-2.50HPSMRW8	2.00	2.00	6.37	90°	2.62	CPEH-32.52-4W CPEH-322.52-4W	22 2	4
2.00-4.00HPSMRW8	2.00	2.00	7.68	90°	4.00	CPEH-32.52-4W CPEH-322.52-4W	34 2	4

Milling Cutter Nomenclature

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

.375 x .156	CPEH-322.52-4W	CPEH-32.52-4W	3605-0001-0021	1557-TX10

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Insert Nomenclature

**Starting Machining Parameters**
Material	SFPM	FPT	Primary	Secondary
Tool Steel, D2	250-350	.003-.012	GR 606JRM	GR LT-50
Medium Alloy Steel	300-700	.003-.012	GR 606JRM	GR LTC-14
Tool Steel, P20	300-700	.003-.012	GR 606JRM	GR LTC-14
Soft Alloy Steel	400-800	.003-.012	GR 606JRM	GR LTC-14
Tool Steel, D2 Cutting Slots	250-350	.003-.012	GR 606JRM	GR LT-50
Medium Alloy Steel Cutting Slots	300-700	.003-.012	GR 606JRM	GR LTC-14
Tool Steel, P20 Cutting Slots	300-700	.003-.012	GR 606JRM	GR LTC-14