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1/16in (1.59mm) Jobber Drill Bit - Silver Series

1/16in (1.59mm) Jobber Drill Bit - Silver Series

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Alpha Silver Series 1/16 inch Jobber Drill Bit

When you go to buy a drill bit, what are you needing ? Just a drill ? or do you actually want HOLES ?

DRILL FEATURES

  • M2 HSS Fully ground M2 HSS material increases drill life
  • 118 Degree Split Point cuts faster and reduces wandering

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TECHNICAL DATA

Overall Length 48mm
Flute Length 23mm
Stainless Steel RPM 2547
Tool Steel RPM 3822
Cast Iron RPM 5096
Malleable Iron RPM 5732
Medium Carbon Steel RPM 6369
Free Cutting Steel RPM 9130
Alum, Brass, Plastic RPM 12951
Wood RPM 19321
Feed per RPM (mm / rev) .05-.15
Standard pack Qty 10

DRILLING PRACTICE

The flute form, web thickness and split point of the standard Alpha drills are suitable for most materials forming fine chips. For effective drilling, the rigidity of the drilland work piece are most important. The shorter the flute length the more rigid the drill. Long drills must be adequately supported to reduce vibration.

The following are important in drill use :

  • Clamp the work piece securely
  • Select the correct speed and feed
  • Use an appropriate coolant or lubricant
  • Ensure the shank is securely held. Avoid using worn drill chucks as the drill may slip during use.
  • Regrind the point or replace the drill before it dulls, do not force a worn drill.
  • When deep hole drilling, withdraw frequently to clear the chips ( deep holes start at 4X the diameter)
  • For stainless steel, manganese and high tensile steels, do not allow the drill to swell as it will cause work-hardening. Use a slower speed and heavier feed for these materials.

 Product Code: 9LI116S

Barcode: 9342386000306

Category: Silver Series

Brand: ALPHA

Box Quantity: 10



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