RUKO 1mm - 10mm HSS Twist Drill Bit Set, 91 Piece
RUKO 91-piece HSS twist drill bit set (1-10mm, 0.1mm increments). Features split point for good centring, DIN 338, and precise h8 tolerance.
The RUKO HSS Twist Drill Bit Set provides a comprehensive drilling solution with 91 pieces ranging from 1mm to 10mm in precise 0.1mm increments. Supplied in a bench stand, these HSS rolled twist drills are manufactured from heavy-duty high-speed steel, ensuring durability and high performance for demanding tasks.
Each fully ground twist drill ensures precise concentricity for accurate drilling results. The split point design offers excellent centring properties, meaning less pressure is required during operation and reducing the risk of drill wandering on the workpiece surface.
Engineered to DIN 338 standards, this set features a right-hand cutting direction and a cylindrical shaft for a secure chuck grip. The normal ground shape tip grinding with an h8 tolerance guarantees precision, while the 118° point angle and 25° to 30° spiral angle provide optimal chip removal. The bits also feature a normal groove profile and normal core for enhanced stability.
Set Contents
- 91 Twist Drill Bits (1mm to 10mm in 0.1mm increments)
Key Specifications
- Material: Heavy-duty high-speed steel (HSS)
- Standard: DIN 338 Type N
- Tip Angle: 118°
- Spiral Angle: 25° - 30°
- Tolerance: h8
- Cutting Direction: Right-hand
- Shaft Type: Cylindrical
- Point Style: Split point
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- Delivery to United States: 3-5 business days*
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