Iecho ER1,Iecho ER2,Iecho ER62.1,Iecho ER63.1,Iecho ER64.1,Iecho ER64.2,Iecho ER64.3,Iecho ER65.1,Iecho ER66.1,Iecho ER66.2,Iecho ER66.3,Iecho ER6C4,Iecho ER6R4,Iecho Router bit,Iecho bit

Iecho ER1 ER2 ER62.1 ER63.1 ER64.1 ER64.2 ER64.3 ER65.1 ER66.1 ER66.2 ER66.3 ER6C4 ER6R4 Router bit

Precision ER1 ER2 ER62.1 ER63.1 ER64.1 ER64.2 ER64.3 ER65.1 ER66.1 ER66.2 ER66.3 ER6C4 ER6R4 cutters for Iecho cutters now available! which are dedicated to Iecho cutters. These tools offer precision, durability and excellent performance in working with materials such as acrylic, wood, plastic and hard plastic.

Iecho ER1,Iecho ER2,Iecho ER62.1,Iecho ER63.1,Iecho ER64.1,Iecho ER64.2,Iecho ER64.3,Iecho ER65.1,Iecho ER66.1,Iecho ER66.2,Iecho ER66.3,Iecho ER6C4,Iecho ER6R4,Iecho Router bit,Iecho bit

Model	Cutting Diameter (D)	Shank Diameter (d)	Flute Length (L1)	Total Length (L)	Flute Type / Geometry	Primary Applications & Materials
ER1	1.0 mm	4.0 mm	3.0 mm	40 mm	1-Flute Spiral (Upcut)	Fine detail routing, thin acrylic, PC, ABS, small engravings.
ER2	2.0 mm	4.0 mm	6.0 mm	40 mm	1-Flute Spiral (Upcut)	Acrylic, PVC, foam board, aluminum composite panel (ACP).
ER62.1	2.0 mm	6.0 mm	8.0 mm	50 mm	1-Flute Spiral (Upcut)	Rigid plastics, acrylic, wood, aluminum (standard shank).
ER63.1	3.0 mm	6.0 mm	12.0 mm	50 mm	1-Flute Spiral (Upcut)	ACP, acrylic, PVC, MDF, soft metals (aluminum/brass).
ER64.1	4.0 mm	6.0 mm	12.0 mm	50 mm	1-Flute Spiral (Upcut)	General-purpose high-speed routing, thick acrylic, wood.
ER64.2	4.0 mm	6.0 mm	15.0 mm	50 mm	2-Flute Spiral	Smooth finishing on hard plastics, wood, MDF, soft metals.
ER64.3	4.0 mm	6.0 mm	22.0 mm	60 mm	1-Flute / Extended	Deep pocket routing and thick material milling.
ER65.1	5.0 mm	6.0 mm	15.0 mm	50 mm	1-Flute Spiral (Upcut)	Heavy-duty sheet routing, ACP, thick acrylic, PVC.
ER66.1	6.0 mm	6.0 mm	15.0 mm	50 mm	1-Flute Spiral (Upcut)	Rapid material removal, thick plastics, wood, aluminum.
ER66.2	6.0 mm	6.0 mm	22.0 mm	60 mm	2-Flute Spiral	Deep cuts, smooth edge finish on wood, MDF, hard plastics.
ER66.3	6.0 mm	6.0 mm	32.0 mm	70 mm	1-Flute / Extended	Extra-deep routing, thick foam, insulation board, timber.
ER6C4	4.0 mm	6.0 mm	12.0 mm	50 mm	Chipbreaker / Roughing	High-speed roughing, honeycomb board, dense composites.
ER6R4	4.0 mm	6.0 mm	12.0 mm	50 mm	Reverse (Downcut)	Laminates, veneered wood, top-surface chip prevention.

Key Naming Conventions & Selection Guide
Single-Flute (e.g., ER64.1): Best for plastics and soft metals (aluminum). Single-flute designs allow large chip clearance, preventing material melting at high speeds.

Double-Flute (e.g., ER64.2, ER66.2): Best for wood, MDF, and rigid substrates where a cleaner edge finish is prioritized over maximum chip evacuation.

Chipbreaker / Roughing (ER6C4): Designed for tough composite materials (like paper honeycomb or carbon fiber), breaking chips down into smaller particles to lower cutting load.

Reverse / Downcut (ER6R4): Forces material downward during cutting to eliminate top-surface burring and prevent lifting on thin or laminated sheet goods.

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