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5-Piece Set of Hole-Making Drill Bits High-Speed Steel Spiral Flute Step Drill Bits Hole-Making Drill Bits

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Leírás és részletek

Összefoglaló

1. Clearly marked fiber diameter; universal hexagonal handle for easy reading and operation.
2. Industrial-grade coating process significantly improves drill bit power and fatigue life.
3. Dedicated chip removal groove design effectively prevents fatigue damage from metal chips.
4. Spiral groove structure reduces fatigue strength, making chip removal and fatigue protection more efficient.
5. 118° bifurcation point apex angle ensures precise grating positioning and prevents slippage.

5-Piece Set of Hole-Making Drill Bits High-Speed Steel Spiral Flute Step Drill Bits Hole-Making Drill Bits leírása

1. Clearly marked fiber diameter; universal hexagonal handle for easy reading and operation.
2. Industrial-grade coating process significantly improves drill bit power and fatigue life.
3. Dedicated chip removal design effectively prevents fatigue damage from metal chips.
4. Spiral structure reduces fatigue strength, making chip removal and fatigue protection more efficient.
5. 118 bifurcation point apex angle ensures precise grating positioning and prevents slippage.

Specifications
Quantity: 5 pieces
Material: High-speed steel
Dimensions: As shown in the picture
Color: As Shown

Package Contents:
5* High-speed steel drill bit

Részletek