NACHI L500 HSS Straight Shank Drill Bit 3.25 mm, Overall Length 71 mm

High-Speed Steel Drill Bit NACHI L500 Size 3.25 mm Length 71 mm

NACHI HSS Drill Bit (Model L500) size 3.25 mm. A high-quality straight shank drill bit manufactured from premium-grade High Speed Steel (HSS), designed for high-precision metal drilling. Through high-precision hardening and cutting edge grinding processes, it penetrates materials quickly and smoothly, providing clean, smooth, non-snagging holes with a significantly longer service life than standard drill bits.

Features
- Japanese Quality (LIST 500): Manufactured to NACHI LIST 500 standards, the most popular model offering the best balance between hardness and toughness.
- Precision Size (3.25 mm): Special 3.25 mm size, ideal for high-precision drilling tasks or pilot hole drilling prior to specific-size tapping.
- High-Speed Steel (HSS): Made from premium high-speed steel with excellent resistance to heat buildup during drilling, keeping the cutting edge sharp longer.
- Standard Spiral Flute: Standard spiral flute design facilitates efficient chip evacuation, reducing clogging and friction during operation.
- Flute length 71 mm
- Helix angle 22°-33°

Applications 
- Metalworking: Drilling mild steel, cast iron, and general alloys
- Aluminium & Non-Ferrous: Drilling aluminum, copper, brass, as well as hard plastics and wood
- Automotive & DIY: Automotive maintenance, prototyping, or model making requiring high-precision drilled holes

Specification 
- Brand: NACHI (Made in Japan)
- Model: L500 (Straight Shank Twist Drill)
- Material: High Speed Steel (HSS)
- Diameter: 3.25 mm
- Overall Length: 71 mm
- Flute Length: Approx. 42 mm

Applicable Materials
- Structural steel SS400
- High-carbon steel S45C, S50C
- Alloy steel SCM, NAK
- Cast iron FCD, FC
- Aluminum AC, ADC
- Copper Cu