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MRMN 300 M plate H6018 Horn
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  • MRMN 300 M plate H6018 Horn
  • MRMN 300 M plate H6018 Horn - nr. 1
Horn

Insert MRMN 300 M H6018 Horn

Horn Horn
0000006673
Insert width: 3 mm4 sizes of this insert
2 mm3 mm4 mm5 mm
€5.83 tax inc.

Net price: €4.74

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W magazynie: 10-100 szt.
W magazynie: 10-100 szt.

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Call and order: (44) 755-04-05

Description

MRMN 300 insert -M H6810 indexable Horn insert for round-bottom grooving, from the Korean company Horn, for cutting profiled grooves and machining radii.

Technical data for the 3 mm MRMN radius grooving insert

Dimensions and geometric parameters

Technical data
Cutting width b 3 mm
Blade radius r 1.5 mm
overall length l 21 mm
width d 2.35 mm
height t 4.8 mm

The MRMN 300 grooving insert with radius R1.5 allows

Turning operations with the MRMN 300 insert

  • round-bottom grooving

  • cutting O-ring grooves

  • radius profiling

  • plunge turning with a radius

MRMN 300 cutting data

Speeds and feeds for 3 machining operations

MaterialPartingFacingGrooving / turning
Vc [m/min]fn [mm/rev]Vc [m/min]fn [mm/rev]Vc [m/min]fn [mm/rev]
P Carbon steel 80 – 180 0.03 – 0.18 100 – 160 0.05 – 0.10 80 – 200 0.04 – 0.10
P Alloy steel 70 – 150 0.03 – 0.18 50 – 130 0.05 – 0.10 80 – 180 0.04 – 0.09
M Stainless steel 50 – 120 0.03 – 0.12 60 – 150 0.05 – 0.10 60 – 100 0.04 – 0.10

MRMN 300 grooving insert with radius R1.5 – 3 mm insert for steel

Grade H6810 with CVD coating

The MRMN 300 M H6810 Horn insert is a double-ended carbide insert with a cutting width of 3 mm and a full radius R1.5 at the cutting tip, designed for cutting round-bottom grooves and profiling radii on conventional and CNC lathes. The 1.5 mm radius spanning the entire cutting width produces a semicircular groove profile, making this insert ideal for machining O-ring seats, sealing ring seats, and lubrication grooves. CVD-coated cemented carbide grade H6810 is a versatile grade designed for high-productivity medium machining of steel, offering high cutting edge security even under unfavorable cutting conditions. The insert fits MGMN-type indexable turning tools with a spring clamping system. The 2-edge design allows the insert to be indexed after the first edge wears out so machining can continue without replacement.

Key features of the MRMN 300 H6810 Horn insert

  • Radius R1.5 mm at the cutting edge produces a semicircular groove bottom profile, enabling precise machining of O-ring and sealing ring seats in accordance with DIN 3771 and ISO 3601
  • Grade H6810 with high edge security ensures stable operation even during interrupted cutting, with uneven stock allowances and vibrating workpieces, reducing the risk of edge chipping
  • CVD coating resistant to temperatures of 700-1000°C maintains cutting edge stability during intensive grooving at high feed rates
  • Cutting width of 3 mm with M-type geometry enables cutting of profiled grooves 3 mm wide and up to 21 mm deep with a rounded bottom
  • The double-ended design provides 2 independent cutting edges, reducing the machining cost per 1 component by 50 percent
  • Compatibility with MGMN-type holders with shank sizes of 16x16 mm, 20x20 mm, 25x25 mm, and 32x32 mm, as well as internal grooving blades

Compatible turning tools

for the MRMN 300 insert (groove width 3 mm)

MGEHR/L 1616-316×16 × 100 mm | Tmax 18.5R right-hand
←L left-hand
→
MGEHR/L 2020-320×20 × 125 mm | Tmax 18R right-hand
←L left-hand
→
MGEHR/L 2525-325×25 × 150 mm | Tmax 18R right-hand
←L left-hand
→
MGEHR/L 3232-332×32 × 170 mm | Tmax 18R right-hand
←L left-hand
→
BDKT R/L 1212 K3C T1812×12 × 100 mm | Tmax 18 | Ømax 36R right-hand
←L left-hand
→
BDKT R/L 1616 K3C T1816×16 × 125 mm | Tmax 18 | Ømax 36R right-hand
←L left-hand
→
BDKT R/L 2020 K3C T2020×20 × 125 mm | Tmax 20 | Ømax 40R right-hand
←L left-hand
→
BDKT R/L 2525 K3C T2225×25 × 150 mm | Tmax 22 | Ømax 44R right-hand
←L left-hand
→
BDKT R/L 2525 K3C T2525×25 × 150 mm | Tmax 25 | Ømax 50R right-hand
←L left-hand
→
BDKT R/L 2525 K3C T4025×25 × 170 mm | Tmax 40 | Ømax 80R right-hand
←L left-hand
→
BDKT R/L 3232 K3C T2232×32 × 170 mm | Tmax 22 | Ømax 44R right-hand
←L left-hand
→
MGIVR/L 2520-3Ø25 (d=20) × 150 mm | Tmax 6R right-hand
←L left-hand
→
MGIVR/L 3125-3Ø31 (d=25) × 200 mm | Tmax 6R right-hand
←L left-hand
→
MGIVR/L 3732-3Ø37 (d=32) × 250 mm | Tmax 6R right-hand
←L left-hand
→
BIKT R/L 20 K3C T6Ø20 × 170 mm | Tmax 6R right-hand
←L left-hand
→
BIKT R/L 25 K3C T7Ø25 × 200 mm | Tmax 7R right-hand
←L left-hand
→
BIKT R/L 32 K3C T8Ø32 × 250 mm | Tmax 8R right-hand
←L left-hand
→
BIKT R/L 40 K3C T10Ø40 × 300 mm | Tmax 10R right-hand
←L left-hand
→
BEKT R/L 25 K3C T7Ø25 × 200 mm | Tmax 7 | reinforcedR right-hand
←L left-hand
→
BEKT R/L 25 K3C T10Ø25 × 200 mm | Tmax 10 | reinforcedR right-hand
←L left-hand
→
BEKT R/L 32 K3C T10Ø32 × 250 mm | Tmax 10 | reinforcedR right-hand
←L left-hand
→

Frequently asked questions

The MRMN 300 insert has a full radius R1.5 mm spanning the entire cutting width, producing a semicircular groove bottom profile. The MGMN 300 insert has a straight cutting edge with a small corner radius of 0.4 mm and produces a flat-bottom groove. Choose MRMN for O-ring and seal grooves, and MGMN for parting and rectangular grooves.

The MRMN 300 insert with radius R1.5 mm is ideal for O-ring and sealing ring grooves requiring a rounded bottom in accordance with DIN 3771 and ISO 3601. The semicircular groove profile with a width of 3 mm eliminates sharp edges that could damage elastomer seals during assembly. The larger radius compared with the MRMN 200 allows thicker sealing rings to be used.

Grade H6810 is a versatile CVD-coated cemented carbide designed for high-productivity machining of structural, alloy, and stainless steels. It offers high cutting edge security under unfavorable conditions, such as interrupted cutting or unstable workpiece clamping. It is also suitable for machining cast iron and cast steel.

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Insert MRMN 300 M H6018 Horn

Insert MRMN 300 M H6018 Horn

Shipping

All orders are delivered by courier company GLS. For orders exceeding 369 PLN gross shipping is FREE

Courier GLS Przelew24 / Prepayment 14,76 zł gross Delivery time 1 working day
Courier GLS Cash on delivery 17,26 zł gross Lead time 1 working day

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