1PCS HSS 4-12mm 4-20mm 4-32mm Hex Shank Nitriding Black Spiral Grooved Step Drills Cobalt Kit Metal Hole Cutter Power Tools 1
1PCS HSS 4-12mm 4-20mm 4-32mm Hex Shank Nitriding Black Spiral Grooved Step Drills Cobalt Kit Metal Hole Cutter Power Tools 2
1PCS HSS 4-12mm 4-20mm 4-32mm Hex Shank Nitriding Black Spiral Grooved Step Drills Cobalt Kit Metal Hole Cutter Power Tools 3
1PCS HSS 4-12mm 4-20mm 4-32mm Hex Shank Nitriding Black Spiral Grooved Step Drills Cobalt Kit Metal Hole Cutter Power Tools 4
1PCS HSS 4-12mm 4-20mm 4-32mm Hex Shank Nitriding Black Spiral Grooved Step Drills Cobalt Kit Metal Hole Cutter Power Tools 5
1PCS HSS 4-12mm 4-20mm 4-32mm Hex Shank Nitriding Black Spiral Grooved Step Drills Cobalt Kit Metal Hole Cutter Power Tools 6

1PCS HSS 4-12mm 4-20mm 4-32mm Hex Shank Nitriding Black Spiral Grooved Step Drills Cobalt Kit Metal Hole Cutter Power Tools

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SKU: Y4XIJB7ZMOPQ

Description

  • High hardness, unique stepped structure, a drill can open a variety of size aperture.

  • Suitable for these work-pieces that hardness is lower than 25 degree and the thickness is beyond 4mm, such as aluminum parts, insulation board, PVC plate, etc.

  • The central punch is not needed, small shaking, hard to be broken.

  • Used with pistol drill or bench drill, water it to cool while working to prolong its life, the proper drilling speed is 250 – 400 rpm

  • Material: HSS 4241

  • Shank: Hex shank

  • Shank diameter: 6mm

  • Groove: Spiral

  • Surface treatment: Nitriding black

  • Step quantities Step diameter Net weight

  • 001 5 steps 4, 6, 8, 10, 12mm approx. 20g

    002 9 steps 4, 6, 8, 10, 12, 14, 16, 18, 20mm approx. 42g

    003 15 steps 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32mm approx. 137g

  • 1pc HSS Hex Shank Nitriding Black Straight Groove Step Drill Bit

Additional information

Weight 0,200 kg
Dimensions 30 × 30 × 30 cm
Shank:

Hex Shank
Shank diameter:

6mm
Groove:

spiral
Surface treatment:

Nitriding black
Brand Name

ATOPLEE
Length

4-12mm, 4-20mm, 4-32mm
Model Number

16090003001
Type

Other
Use

Metal Drilling
Material

High Speed Steel
Origin

Mainland China
is_customized

Yes
Certification

NONE
DIY Supplies

Metalworking
Choice

yes
semi_Choice

yes

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