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Carbide Step Drill Bits - Straight Shank, DLC Coated, Stub

Carbide Step Drill Bits - Straight Shank, DLC Coated, Stub

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  • Carbide Step Drill Bits - Straight Shank, DLC Coated, Stub
  • Carbide Step Drill Bits - Straight Shank, DLC Coated, Stub
  • Volume Discount

Reducing the number of steps enables higher efficiency drilling of pilot holes

DLC Coated Carbide Stepped Drill for Aluminum Machining, Stub:Related Image
Part Number
DLC-SC-SDR5.1-18
DLC-SC-SDR6.8-24
DLC-SF-SDR3.4-12
DLC-SF-SDR8.5-20
DLC-SF-SDR8.5-30
DLC-SF-SDR10.3-36
Part NumberMinimum order quantityVolume DiscountDays to Ship Hole Diameter (Drilling Diameter) D
(mm)
Groove Length (ℓ)
(mm)
Overall Length (L)
(mm)
Step Length ℓ
(mm)
Shank Diameter d Diameter Tolerance Tolerance of Shank Diameter Use Major Diameter D1
(φ)
1 Piece(s)Available

8 Days or more

5.136901880 ~ -0.0140 ~ -0.009For Chamfering8
1 Piece(s)Available

8 Days or more

6.84810424100 ~ -0.0180 ~ -0.009For Chamfering10
1 Piece(s)Available

8 Days or more

3.425771260 ~ -0.0140 ~ -0.008Cutting6
1 Piece(s)Available

8 Days or more

8.55011220120 ~ -0.0180 ~ -0.011Cutting12
1 Piece(s)Available

8 Days or more

8.56012230120 ~ -0.0180 ~ -0.011Cutting12
1 Piece(s)Available

8 Days or more

10.37213636140 ~ -0.0220 ~ -0.011Cutting14

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Specifications

DLC Coated Carbide Stepped Drill for Aluminum Machining, Stub:Related Image

Model Number Step Length
Large Diameter
D1
Groove Length
ℓ1
Overall Length
L
Shank Diameter
d
Tip Diameter
D
DLC-SC-SDR
(For chamfering)

DLC-SF-SDR
(For cutting)
3.48621736
12625776
4.310726797
15731847
5.112830848
18836908
6.81610409610
24104810410
8.520125011212
30126012212
10.324146012414
36147213614


For Cutting Conditions, Refer to >>Click here.

More Information


The DLC coating has excellent wear-resistant and welding-resistant properties that make it ideal for machining non-ferrous metals such as aluminum, copper, etc.
A strong torsion shape provides superior discharge of cutting chips and cutting capability.
Designed for very frequent drilling of pilot holes for M4 – M12 metric coarse thread.
Two models of step angle are available for chamfering and cutting.
High-efficiency hole drilling is achieved by reducing the chamfering process. (DLC-SC-SDR)
When drilling pilot holes for bolts, relief holes can also be drilled at the same time. (DLC-SF-SDR)

Basic Information

Work Material Cast Iron / Aluminum / Copper Tool Material Type Carbide Link Model Straight Shank
Coating Presence Included Coating Type DLC Oil-Hole Presence None
Point Angle(°) 130 Thinning Included

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