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NC E2 type VDI tool holder For boring bars with cylindrical shank

Product Advantages

Excellent rigidity: multi screw side locking, easy to shake during heavy boring and high feed milling;

Strong universality: One tool holder can be used interchangeably for boring bars and milling cutters, reducing tool holder inventory;

Efficient installation: VDI serrated positioning, fast tool change and adjustment speed;

Stable accuracy: precise grinding of the inner hole, high coaxiality of the circular handle tool clamping, and good smoothness of the inner hole;

Durable and wear-resistant: high hardness quenching, not easily deformed after long-term processing.

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NC E2 type VDI tool holder

Order No	d1	d2	d3	d4	d5	h1	h2	l1	l2	l3
E2-16X6	16	6	40	32	M6	18	18	13	44	34
E2-16X8	16	8	40	32	M6	18	18	13	44	34
E2-16X10	16	10	40	32	M6	18	18	13	44	34
E2-16X12	16	12	40	40	M8	18	18	13	44	34
E2-16X16	16	16	40	40	M8	18	18	13	44	34
E2-20X8	20	8	50	40	M6	-	23	18	50	41
E2-20X10	20	10	50	40	M6	-	23	18	50	41
E2-20X12	20	12	50	40	M8	-	23	18	50	41
E2-20X16	20	16	50	40	M8	-	23	18	50	41
E2-20X20	20	20	50	50	M8	-	23	18	50	51
E2-20X25	20	25	50	50	M8	-	23	18	60	41
E2-30X6	30	6	68	55	M6	28	30	22	60	51
E2-30X8	30	8	68	55	M6	28	30	22	60	51
E2-30X10	30	10	68	55	M6	28	30	22	60	51
E2-30X12	30	12	68	55	M8	28	30	22	60	51
E2-30X16	30	16	68	55	M8	28	30	22	60	51
E2-30X20	30	20	68	55	M8	28	30	22	60	51
E2-30X25	30	25	68	55	M8	28	30	22	60	51
E2-30X32	30	32	68	68	M8	28	30	22	75	61
E2-40X6	40	6	83	55	M6	32.5	-	22	75	41
E2-40X8	40	8	83	55	M6	32.5	-	22	75	51
E2-40X8	40	8	83	55	M6	32.5	-	22	75	13
E2-40X10	40	10	83	55	M6	32.5	-	22	75	51
E2-40X12	40	12	83	55	M8	32.5	-	22	75	51
E2-40X16	40	16	83	55	M10	32.5	-	22	75	61
E2-40X20	40	20	83	55	M10	32.5	-	22	75	61
E2-40X25	40	25	83	55	M10	32.5	-	22	75	61
E2-40X32	40	32	83	83	M10	32.5	-	22	75	61
E2-40X40	40	40	98	83	M1O	32.5	-	22	90	61
E2-50X10	50	10	98	68	M6	35	-	30	90	76
E2-50X12	50	12	98	68	M8	35	-	30	90	51
E2-50X16	50	16	98	68	M10	35	-	30	90	61
E2-50X20	50	20	98	68	M12	35	-	30	90	76
E2-50X25	50	25	98	68	M12	35	-	30	90	76
E2-50X32	50	32	98	68	M12	35	-	30	90	76
E2-50X40	50	40	98	98	M12	35	-	30	90	76
E2-50X50	50	50	98	98	M12	35	-	30	100	76
E2-60X16	60	16	123	68	M10	42.5	-	30	90	86
E2-60X20	60	20	123	68	M12	42.5	-	30	90	76
E2-60X25	60	25	123	68	M12	42.5	-	30	90	76
E2-60X32	60	32	123	68	M12	42.5	-	30	90	76
E2-60X40	60	40	123	98	M12	42.5	-	30	90	76
E2-60X50	60	50	123	98	M12	42.5	-	30	100	76

Q1: What is E2?
A: E2 is a cylindrical straight hole tool holder under DIN 69880 VDI standard, commonly known as VDI-E2 boring and milling cutter holder, designed for VDI power tool towers of CNC lathes and turning-milling machines.

Q2: What is E2 mainly used for?
A: Holding cylindrical shank boring bars, end mills, and reamers for boring and milling processes.

Q3: How to read the model name? Example: E2-40×20
A:

E2: Type code (side fixed cylindrical hole, standard external cooling)
40: VDI installation handle diameter (VD16/20/25/30/40/50/60)
20: Clamping inner hole diameter (tool shank diameter 6~50mm)

Q4: What is the installation end structure?
A: Rear serrated VDI handle, matched with machine tool turret VDI tool holder, strong positioning and locking rigidity, quick disassembly and assembly.

Q5: How does the clamping end lock the tool?
A: Straight through cylindrical hole, multiple hexagonal side fixing screws press the round handle tool tightly.

Q6: What cooling methods are available?
A: Standard external cooling holes; some customized models with internal cooling channels, suitable for deep hole boring and chip removal.

Q7: What about material and hardness?
A: Alloy structural steel, overall quenched HRC56~58, precision outer circle/inner hole grinding, runout ≤ 0.01mm.

Q8: What tools can be clamped for boring?
A: Integral carbide boring bars, adjustable precision boring tools, rough boring tools, for inner hole rough/precision boring, step holes, blind holes.

Q9: What tools can be clamped for milling?
A: Straight end mills, keyway milling cutters, countersunk drills, for end milling, side milling, groove milling.

Q10: What other processes can it complete?
A: Clamping reamers and floating tap rods for reaming and tapping.

Q11: What equipment is it suitable for?
A: VDI power tool towers of CNC lathes and turning-milling composite machines.

Q12: What are the core advantages of E2?
A: Boring and milling dual-use, strong rigidity, high positioning accuracy, quick disassembly, runout ≤ 0.01mm.

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