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MGEH Grooving holder

This MGEHR/L grooving tool holder fits MGMN & MRMN inserts with multiple shank sizes. Made of 42CrMo4 steel quenched to HRC44-48. Compared with old 40CR holders, it adopts post-quench precision machining and nickel-plated surface, featuring better shock resistance, high precision, rust & scratch resistance. Complete matching inserts and other tool holders are supplied, with professional technical support for customized selection.

Full Advantages

1. Wide size range fits multiple grooving inserts

2. 42CrMo4 steel, hardness up to HRC44-48

3. Post-quench machining delivers high precision

4. Low tip height error, perfect blade fitting

5. Nickel-plated surface anti-rust & anti-scratch

6. No extra oil needed for convenient operation

7. Strong shock resistance for stable cutting

8. Longer service life, lower comprehensive cost

9. Complete supporting inserts & diversified tool holders

10. Customized tool selection technical support

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Specifications

Specification		Inserts	Application
			External turning
			H=(h)	W	L	F	T(max)
MGEHR/L	1616-1.5	MGMN150-	16	16	100	16.25	14.5
	2020-1.5		20	20	125	20.25	14.5
	2525-1.5		25	25	150	25.25	14.5
	1212-2.0	MGMN200	12	12	100	14.25	14.5
	1616-2.0		16	16	100	16.25	14.5
	2020-2.0		20	20	125	20.25	14.5
	2525-2.0		25	25	150	25.25	14.5
	1616-2.5	MGMN250	16	16	100	16.30	16.5
	2020-2.5		20	20	125	20.30	16.5
	2525-2.5		25	25	150	25.30	16.5
	1616-3.0	MGMN300 MRMN300	16	16	100	16.35	18.5
	2020-3.0		20	20	125	20.40	18
	2020-3.0-T10		20	20	125	20.40	10
	2525-3.0		25	25	150	25.40	18
	2525-3.0-T10		25	25	150	25.40	10
	3232-3.0		32	32	170	32.40	18
	3233-3.0-T10		32	32	170	32.40	10
	2020-4.0	MGMN400 MRMN400	20	20	125	20.40	18
	2020-4.0-T10		20	20	125	20.50	10
	2525-4.0		25	25	150	25.40	18
	2525-4.0-T10		25	25	150	25.40	10
	3232-4.0		32	32	170	32.40	18
	3232-4.0-T10		32	32	170	32.40	10
MGEHR/L	2020-5.0	and more	20	20	150	20.50	23

Main advantages of new made grooving holders

Features	Old grooving holder	New holder
Color	Black color	Silver color
Raw material	Raw material is 40CRHardness after quenching isHRC36-40	Raw material is 42CrMo4 alloy steelHardness after quenching isHRC44-48
Quenching	Quenching before processing1.After completing all processes, quenching is carried out2.Low production cost3.Easy to cause deformation of the tool holder4.The height of the blade is not accurate5.The fitting surface between the carbide blade and the holder is not good	Processing after quenching1.High temperature quenching after rough machining of all processes2.All precision machining processes require post fire processing3.High production cost but better tolerance4.After installing the blade on the blade holder, the height error of the blade tip is small5.Better fit between blade and blade holder6.More stable lifespan7.After the hardness of the tool holder is increased, the shock resistance of the tool holder is better
Surface treatment	1.Surface blackening treatment2.The blade holder is easy to scratch and rust3.The tool holder is not corrosion-resistant4.The surface needs to be oiled, which is inconvenient to use	1.Surface nickel plating treatment2.High surface hardness, polished glossy finish3.The blade holder is not easily scratched or rusted4.No need to lubricate the surface5.Easy to use