YINGHUA
YINGHUA 4X25X45MM Two Flutes UP DOWN Spiral Carbide Mill Cutter Bit
A two-flute up/down spiral carbide cutter for compression cuts in wood and PVC, measuring 4 by 25 by 45 mm
- TypeRight-Angle Drills
- Two-flute up/down spiral cuts cleanly in wood and PVC
- Tungsten steel construction resists wear during CNC milling
- 4 mm shank fits standard collets for quick tool changes
- 25 mm cutting length handles thick panel stock
- 45 mm overall length suits compact router spindles
Cutting Tool Specification
This single-piece carbide mill cutter is designed for CNC machinery and suits operators who need clean compression cuts in wood, plywood, density board, solid wood and particleboard. The tungsten steel construction provides the hardness required for repetitive routing tasks. It is not intended for hand-held drilling or general-purpose twist-drill work.
Shank and Flute Configuration
The 4 mm shank fits standard collets and tool holders used on desktop and industrial CNC routers, while the two-flute up-down spiral geometry shears fibres in opposite directions to reduce tear-out on both faces of the workpiece. This design frees the operator from running separate up-cut and down-cut passes on double-sided material. The 25 mm cutting length determines maximum depth per pass.
Sustained Operation Behaviour
Tungsten steel retains its edge through extended production runs, so cut quality remains consistent across multiple sheets without frequent tool changes. The compression spiral evacuates chips efficiently during continuous profiling, preventing re-cutting and heat build-up that can melt PVC or scorch timber. The tool is rated for users aged 18 and over and is restricted to industrial cutting applications only.
Highlights
- Two-flute up/down spiral cuts cleanly in wood and PVC
- Tungsten steel construction resists wear during CNC milling
- 4 mm shank fits standard collets for quick tool changes
- 25 mm cutting length handles thick panel stock
- 45 mm overall length suits compact router spindles
Specifications
| Type | Right-Angle Drills |
|---|
Questions about this item
How long does the 45 mm overall length last before the tungsten-steel flutes wear down in dense plywood?
The 45 mm solid carbide body resists wear far longer than HSS bits; flute life depends on feed rate and material density rather than a fixed hour count.
Does the up-down spiral generate noticeable heat or vibration during a full day of CNC routing?
The compression geometry shears chips upward and downward simultaneously, reducing heat buildup and vibration compared with single-direction cutters.
What shank size must my CNC collet accept for this 4 mm cutter to fit?
The cutter has a 4 mm shank, so a 4 mm ER collet or equivalent 4 mm clamping system is required.
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