HSS DRILL SET 25 PCS (RED BOX)
Pump, Tools & Tools AccessoriesHSS DRILL SET 25 PCS (RED BOX)
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Set Contents & Sizes Included (in 0.5mm Increments):
25 Drill Bits: 1.0mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm, 3.5mm, 4.0mm, 4.5mm, 5.0mm, 5.5mm, 6.0mm, 6.5mm, 7.0mm, 7.5mm, 8.0mm, 8.5mm, 9.0mm, 9.5mm, 10.0mm, 10.5mm, 11.0mm, 11.5mm, 12.0mm, 12.5mm, and 13.0mm.
Premium High-Speed Steel (HSS): Forged from top-tier heat-treated High-Speed Steel for maximum hardness, superior wear resistance, and long-lasting cutting performance.
DIN 338 Standard Alignment: Precision-engineered in accordance with DIN 338 standards to ensure exact tolerances, minimum runout, and high concentricity.
25 Metric Incremental Sizes (1.0mm to 13.0mm): Comprehensive workshop set containing 25 sizes in 0.5mm steps to handle a complete spectrum of drilling tasks.
Straight Shank Jobber Design: Straight round shank fits securely into standard power drill chucks and stationary drill presses.
Heavy-Duty Red Iron Storage Box: Enclosed in a powder-coated red metal index case with individual size markings for organized storage and jobsite durability.
The Jon Bhandari Tools 25 Pcs HSS Drill Bit Set (Red Box) is the ultimate industrial-grade drilling kit designed for workshop, fabrication, and professional engineering needs. Crafted from high-density High-Speed Steel (HSS) according to DIN 338 standards, these jobber-length twist bits easily slice through mild steel, aluminum, copper, brass, timber, plywood, and tough plastics.
Type: Standard Manufacturer / Defect Warranty.
Details: Covers manufacturing defects, structural flaws, or bent bits upon arrival. Normal operational wear, bit dulling from continuous drilling, or breakage caused by side pressure and over-torquing are excluded.
Q1: What materials can I drill using this 25-piece HSS drill set?
A: This set is ideal for mild steel sheets, non-ferrous metals (aluminum, brass, copper), wood, board materials, and hard synthetic plastics.
Q2: Will the larger sizes (above 10mm) fit in a standard 13mm drill chuck?
A: Yes, all bits in this set range up to 13.0mm, making them compatible with standard 13mm (1/2-inch) key or keyless drill chucks on hand drills and drill presses.
Q3: Is this set suitable for masonry or concrete?
A: No, High-Speed Steel bits are formulated for metals, wood, and plastics. For masonry and concrete, use Jon Bhandari Masonry or SDS Drill Bits with carbide tips.
Q4: How do I preserve the cutting edges on larger drill bit sizes?
A: When drilling larger holes (8mm to 13mm) in steel, run the drill at a lower RPM, use a pilot hole (e.g., 3mm or 4mm), and apply cutting fluid or oil to keep heat under control.
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