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HOFFMANN - 114360

HOFFMANN - 114360

HOLEX Jobber Drill HSS N

Product Specification

Drilling Tools TiN-Coated Jobber Drill

114360 Series TiN-Coated HSS Jobber Drill

Profile Ground for High-Precision Series Production (DIN 338)

Engineered for High Concentricity

The 114360 Series jobber drills are designed for demanding series production. These tools are profile ground to ensure superior concentricity and pitch accuracy. Enhanced with a Titanium Nitride (TiN) coating, they offer increased wear resistance and longer tool life. Starting from size 2.4 mm, the drills feature a specialized Shape C point geometry, optimizing centering and reducing cutting forces.

Key Technical Highlights

  • Material & Coating: HSS core with TiN coating.
  • Geometry: 118° point angle, 35-40° helix angle (Type N).
  • Core Design: Standard core without core taper.
  • Tolerance: h8 nominal diameter accuracy.
  • Standard: DIN 338 compliant.
Specification Comparison
Feature Size 1 Size 5 Size 9.9
Nominal Ø (Dc) 1 mm 5 mm 9.9 mm
Overall Length (L) 34 mm 86 mm 133 mm
Flute Length (Lc) 12 mm 52 mm 87 mm
Feed (Steel < 500 N/mm²) 0.05 mm/rev 0.09 mm/rev 0.16 mm/rev

Drilling Guidance

To maximize tool life and maintain hole precision, observe the recommended maximum drilling depth calculation:

L₂ = Lc – 1.5 × Dc

*Example max depths (L₂): Size 1 = 10.5 mm | Size 5 = 44.5 mm | Size 9.9 = 72.2 mm.

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