EWN Precision Boring Head

Diameter Range: 20mm – 203mm (0.787” – 7.992”)
• Length Range: 32.5mm – 71mm (1.28” – 2.795”)
• Material: H13 Steel

Features and benefits

• Precision vernier adjustment with 0.01mm per division
• Maximum cutting speed: 1200 m/min
• Pre-balanced design for high-speed machining
• Through-coolant supply
• Standard back boring capability
• Supplied with ENH3-1 insert holder
• See page 101 of our catalogue under the “Download” tab for detailed dimensions, tolerances, and applicable inserts
• Please contact us for inquiries on pricing or customized solutions

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Product Description

Dimensions & Technical Specifications

7 available configurations

Cutting Diameter (mm)	Holding Diameter (mm)	Length (mm)	Insert	Cutter Block	Cutter Block Screw	Mass (kg)	Cutter Block Wrench	Counter Boring Cutting Diameter (mm)	Counter Boring Depth (outer L1) (mm)	Counter Boring Depth (inner L2) (mm)	Inner Radius (A) (mm)
20-26	19	32.5	TP..0802..	ENH1-1	M2.2×5	0.09	T7	30-31	20	10	10
25-33	24	35.5	TP..0802..	ENH2-1	M2.2×5	0.15	T7	38-41	22	10	12.5
32-42	31	40	TP..0802..	ENH3-1	M2.2×5	0.25	T7	48-52	25	9	16
41-54	39	47	TC..1102..	ENH4-1	M2.5×6	0.43	T8	59-67	30	13	20
53-70	49	57	TP..1103..	ENH5-1	M3×7	1.25	T8	61-73	34	19	25.5
68-100	63	71	TC..1102..	ENH6-1	M2.5×6	1.78	T8	77-98	45	23	32.5
100-153	63	71	TP..1103..	ENH6-1	M3×7	2.53	T8	107-155	45	23	45.5