Superior Quality Insert Drill Bit Straight Shank HSS Steel Drilling Tool

Description

Product Information:

Premium HSS Straight Shank Insert Drill Bit Our Superior Quality Insert Drill Bit is engineered from industrial-grade High-Speed Steel (HSS), designed to meet the rigorous demands of CNC machining and heavy-duty manual drilling. Featuring a precision-ground straight shank, this tool provides maximum concentricity and a secure grip in standard chucks. The “Insert” design (Indexable or replaceable tip technology) significantly reduces downtime and tool costs by allowing for rapid tip replacement without removing the entire tool body.

• Key Features:

  • Self-Centering Point: Equipped with a 135° split point to prevent “walking” and ensure accurate hole placement without a pilot hole.

  • High Thermal Stability: Maintains hardness and cutting edge sharpness even at temperatures up to 600°C.

  • Optimized Flute Geometry: Parabolic or standard helical flutes for superior chip evacuation and reduced friction.

  • Versatile Application: Ideal for drilling through carbon steel, alloy steel, cast iron, and non-ferrous metals.

Specifications:

Technical parameters:

These values are critical for engineers and procurement managers when evaluating tool performance:

• Radial Run-out (Concentricity): $\leq 0.03 \text{ mm}$ (ensures hole diameter accuracy).

• Surface Feet Per Minute (SFM):

  • Mild Steel ($<700 \text{ N/mm}^2$): $80 – 110 \text{ SFM}$

  • Stainless Steel: $30 – 50 \text{ SFM}$

  • Aluminum Alloys: $200 – 300 \text{ SFM}$

• Feed Rate ($f$): * Small diameter ($<1/8″$): $0.001 – 0.003 \text{ IPR}$

  • Large diameter ($1/2″ – 1″$): $0.007 – 0.015 \text{ IPR}$

• Helix Angle: $25^{\circ} – 33^{\circ}$ (Type N standard for balanced chip removal).

• Tolerance Class: h8 or h9 (Diameter tolerance).