Feature

●【HSS Titanium Coating】High speed steel along with titanium coating ensures outstanding durability and sharpness, can reduces the friction, runs cooler.
●【50 Size in 5 Bits】 The bits set includes five standard step drill bits that can replace 50 individual drill bits, you can process 50 different kinds of diameter holes with the five pieces.
●【Easy Drilling】Double cutting blades and X-type openings design ensure a faster, stable and smoother cutting; 3-sided shank design prevents slip in drill chuck providing with small pressure.
●【Automatic Center Punch& Protective Aluminum Case】 The center punch help you mark the center point that you want to drill, with exquisite aluminum case protects the drill bits not easy to dull and prolongs the drills lifespan.
●【Widely application】 The step drill bits can be used to chamfer, bur, and drill or enlarge holes. The step drill bits can work with stainless steel sheet, aluminum alloy, plastic material and wood.

[10 steps]




[4-12  & 20   & 32mm]




[5PCS Step Drill Bit Set]





Description

step drill bit setstep drill bit set

Feature:

  1. High speed steel along with the titanium coating.
  2. This one set replaces 50 individual drill sets. Comprised of high quality, long life high speed steel.
  3. Self starting - no need for a pilot hole. Cobalt coated to reduce friction and run at cooler temperature.
  4. Automatically deburrs holes as you drill.
  5. 135° SPLIT POINT TIP AND TWO-FLUTE DESIGN: increases cutting speed with self-centering and prevents walking, clears chips faster and allows particles to escape easily.
  6. Automatic center punch for marking accurate spot makes you drill easier and save more effort.

Note:

  • It is recommended to apply oil to the drill bit before each use.
  • Check the concentricity of the spindle and spring chuck and the clamping force of spring chuck.
  • For the concentricity may cause the drill bit broken and make drill hole too large.

Step Drill BitStep Drill Bit

Automatic Center PunchAutomatic Center Punch

Step Drill BitStep Drill Bit

X-shape cutting blades

  • design enables a faster and smoother cutting.

Automatic Center Punch

  • mark the hole locations and starts drill bits and screws, preventing wandering.

Exquisite Aluminum Case

  • protects the drill bits not easy to dull and take the drills to anywhere more easily.
Step Drill BitStep Drill Bit

Size :

  • #1: 1/4" to 1-3/8" 10 Steps (1/4", 3/8", 1/2", 5/8", 3/4", 7/8", 1", 1-1/8", 1-1/4", 1-3/8")
  • #2: 3/16" to 7/8" 12 Steps (3/16", 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8")
  • #3: 1/4" to 3/4" 9 Steps (1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4")
  • #4: 1/8" to 1/2" 13 Steps (1/8", 5/32", 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 13/32", 7/16", 15/32", 1/2")
  • #5: 3/16" to 1/2" 6 Steps (3/16", 1/4", 5/16", 3/8", 7/16", 1/2")

Step Drill BitStep Drill Bit

Package Included:

  • 5 x Step Drill Bit Set
  • 1 x Automatic Center Punch
  • 1 x Aluminum Case