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Precision-max Step Point 4.2mm Hss Drill Ind. 1pce

Precision-max Step Point 4.2mm Hss Drill Ind. 1pce
Precision-max Step Point 4.2mm Hss Drill Ind. 1pce
Precision-max Step Point 4.2mm Hss Drill Ind. 1pce
Precision-max Step Point 4.2mm Hss Drill Ind. 1pce
Precision-max Step Point 4.2mm Hss Drill Ind. 1pce
PACK SIZE
The price displayed for this product is the unit price of the product. Where a PACK SIZE is indicated, this refers to the recommended ordering quantity and is also indicative of how many of these products are packaged in a box.
  • Stock: 207
  • Model: DR90042
  • Weight: 0.01kg
  • Pack Dim: 185.00mm x 50.00mm x 7.00mm
  • UPC: 6009515888596
Price:
R 42.03
Ex VAT: R 36.55

Available Options

Tork Craft Precision-Max Step Point Drill — 4.2 mm HSS (1 Piece)

Achieve precise, clean holes with this 4.2 mm high-speed steel drill bit. Its step-point (stepped spiral) design, split point and tri-flat shank reduce walking and slipping, giving you better control and finish on mild steel, stainless, aluminium and plastic.

Extra Information

  • Use cutting oil or lubricant when drilling steels to reduce friction and extend bit life.
  • Start with moderate RPM (especially in stainless) and feed gently to avoid chattering or breakage.
  • Support thin sheet materials with backing to reduce exit burr or breakout.
  • Inspect bit regularly; resharpen if edges dull to maintain precision.

Pro Tip

  • Use peck cycles (withdraw bit periodically) in deep holes to eject chips and manage heat.
  • Rotate drilling direction or re-index if working on composite or layered materials for cleaner exits.

Features

  • 4.2 mm diameter — ideal for precision work and pilot holes.
  • Stepped spiral tip (step-point geometry) — helps reduce walking at startup.
  • Split point design — aids in self-centering and clean entry.
  • Tri-flat shank — prevents slippage in the chuck for better torque transfer.
  • Material: M2 High Speed Steel / Tungsten-Molybdenum HSS grade.
  • Fully ground flutes for smoother cutting.
  • Tip angle: approximately 135° for better centering and reduced burrs.

Benefits

  • Accurate starts: Step point and split point minimize drifting and improve entry alignment.
  • Better grip in chuck: Tri-flat shank means less slipping under torque.
  • Cleaner finishes: Reduced burrs and smoother edges in metals and plastics.
  • Versatile use: Suitable for mild steel, stainless steel, aluminium and plastic work.

Safety

  • Wear eye protection — chips or fragments may eject during use.
  • Secure the workpiece properly — never hold by hand during drilling.
  • Do not force the bit laterally — allow cutting edges to do the work.
  • Manage heat — pause or reduce feed if the workpiece or bit gets hot.

Specifications

Description Spec
BrandTork Craft
Model / SKUDR90042
Product TypePrecision-Max Step Point Drill Bit (Industrial)
Diameter4.2 mm
MaterialM2 HSS (Tungsten-Molybdenum)
Tip GeometryStep-point / split point
Shank TypeTri-flat anti-slip
Flute StyleFully ground flutes
Tip AngleApprox. 135°
Typical ApplicationsSteel, stainless, aluminium, plastic, sheet materials

 

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