(!)Due to Microsoft's end of support for Internet Explorer 11 on 15/06/2022, this site does not support the recommended environment.

Carbide Step Drill Bits - Straight Shank, Chamfering Blade, TiAlN Coated

Carbide Step Drill Bits - Straight Shank, Chamfering Blade, TiAlN Coated

Click this image to zoom it.

Move the mouse over the image to zoom

  • Carbide Step Drill Bits - Straight Shank, Chamfering Blade, TiAlN Coated
  • Carbide Step Drill Bits - Straight Shank, Chamfering Blade, TiAlN Coated
  • Volume Discount

A stepped drill reduces the number of machining steps, allowing for higher-efficiency drilling

TiAlN Coated Carbide Stepped Drill, For Bolt Drilling / For Drilling Pilot Holes for Screws, with Chamfering Blade:Related Image
Part Number
TAC-SC-SDR3.4-8
TAC-SC-SDR3.4-12
TAC-SC-SDR4.3-10
TAC-SC-SDR4.3-15
TAC-SC-SDR5.1-12
TAC-SC-SDR5.1-18
TAC-SC-SDR6.8-16
TAC-SC-SDR6.8-24
TAC-SC-SDR8.5-20
TAC-SC-SDR8.5-30
TAC-SC-SDR10.3-24
TAC-SC-SDR10.3-36
TAC-SF-SDR3.4-8
TAC-SF-SDR3.4-10
TAC-SF-SDR3.4-12
TAC-SF-SDR3.4-15
TAC-SF-SDR4.3-10
TAC-SF-SDR4.5-12
TAC-SF-SDR4.5-22
TAC-SF-SDR5.1-12
TAC-SF-SDR5.1-18
TAC-SF-SDR5.5-17
TAC-SF-SDR5.5-28
TAC-SF-SDR6.6-20
TAC-SF-SDR6.6-33
TAC-SF-SDR6.8-16
TAC-SF-SDR8.5-30
TAC-SF-SDR9-28
TAC-SF-SDR9-42
TAC-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)
Applicable Screw Size
1 Piece(s)Available

8 Days or more

3.42173860 ~ -0.0140 ~ -0.008-6M4
1 Piece(s)Available

8 Days or more

3.425771260 ~ -0.0140 ~ -0.008-6M4
1 Piece(s)Available

8 Days or more

4.326791070 ~ -0.0140 ~ -0.009-7M5
1 Piece(s)Available

8 Days or more

4.331841570 ~ -0.0140 ~ -0.009-7M5
1 Piece(s)Available

8 Days or more

5.130841280 ~ -0.0140 ~ -0.009-8M6
1 Piece(s)Available

8 Days or more

5.136901880 ~ -0.0140 ~ -0.009-8M6
1 Piece(s)Available

8 Days or more

6.8409616100 ~ -0.0180 ~ -0.009-10M8
1 Piece(s)Available

8 Days or more

6.84810424100 ~ -0.0180 ~ -0.009-10M8
1 Piece(s)Available

8 Days or more

8.55011220120 ~ -0.0180 ~ -0.011-12M10
1 Piece(s)Available

8 Days or more

8.56012230120 ~ -0.0180 ~ -0.011-12M10
1 Piece(s)Available

8 Days or more

10.36012424140 ~ -0.0220 ~ -0.011-14M12
1 Piece(s)Available

8 Days or more

10.37213636140 ~ -0.0220 ~ -0.011-14M12
1 Piece(s)Available

8 Days or more

3.42173860 ~ -0.0140 ~ -0.008Cutting6-
1 Piece(s)Available

8 Days or more

3.42175106.50 ~ -0.0140 ~ -0.009For Spot Facing6.5-
1 Piece(s)Available

8 Days or more

3.425771260 ~ -0.0140 ~ -0.009Cutting6-
1 Piece(s)Available

8 Days or more

3.42580156.50 ~ -0.0140 ~ -0.009For Spot Facing6.5-
1 Piece(s)Available

8 Days or more

4.326791070 ~ -0.0140 ~ -0.009Cutting7-
1 Piece(s)Available

8 Days or more

4.525741280 ~ -0.0140 ~ -0.009For Spot Facing8-
1 Piece(s)Available

8 Days or more

4.535842280 ~ -0.0140 ~ -0.009For Spot Facing8-
1 Piece(s)Available

8 Days or more

5.130841280 ~ -0.0140 ~ -0.009Cutting8-
1 Piece(s)Available

18 Days or more

5.136901880 ~ -0.0140 ~ -0.009Cutting8-
1 Piece(s)Available

8 Days or more

5.52979179.50 ~ -0.0140 ~ -0.009For Spot Facing9.5-
1 Piece(s)Available

8 Days or more

5.54090289.50 ~ -0.0140 ~ -0.009For Spot Facing9.5-
1 Piece(s)Available

8 Days or more

6.6329120110 ~ -0.0180 ~ -0.011For Spot Facing11-
1 Piece(s)Available

8 Days or more

6.64510433110 ~ -0.0180 ~ -0.011For Spot Facing11-
1 Piece(s)Available

8 Days or more

6.8409616100 ~ -0.0180 ~ -0.009Cutting10-
1 Piece(s)Available

8 Days or more

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

8 Days or more

94710828140 ~ -0.0180 ~ -0.011For Spot Facing14-
1 Piece(s)Available

8 Days or more

96512242140 ~ -0.0180 ~ -0.011For Spot Facing14-
1 Piece(s)Available

8 Days or more

10.37213636140 ~ -0.0220 ~ -0.011Cutting14-

Loading...

  1. 1

Specifications

TiAlN Coated Carbide Stepped Drill, For Bolt Drilling / For Drilling Pilot Holes for Screws, with Chamfering Blade:Related Image

Model Number
TAC-SF-SDR (For bolt hole drilling)
  Step Length
Large Diameter
D1
Groove Length
ℓ1
Overall Length
L
Shank Diameter
d
Tip Diameter
D
Counterbore
Type
3.4106.521756.5
156.525806.5
4.512825748
22835848
5.5179.529799.5
289.540909.5
6.62011329111
33114510411
928144710814
42146512214
Cutting
Type
3.48621736
12625776
4.310726797
5.112830848
18836908
6.81610409610
8.520125011212
30126012212
10.336147213614

Tip Diameter DTolerance (h8)
3.4 ~ 5.50
-0.014
6.6 ~ 90
-0.018
10.30
-0.022

Shank Diameter dTolerance (h6)
60
-0.008
6.5 ~ 100
-0.009
11~ 140
-0.011

Model Number
TAC-SC-SDR (For screw tap hole drilling)
Tip Diameter
D
Step Length
Large Diameter
D1
Groove Length
ℓ1
Overall Length
L
Shank Diameter
d
Applicable Screw Size
3.48621736M4
12625776M4
4.310726797M5
15731847M5
5.112830848M6
18836908M6
6.81610409610M8
24104810410M8
8.520125011212M10
30126012212M10
10.324146012414M12
36147213614M12

Tip Diameter DTolerance (h8)
3.4 ~ 5.10
-0.014
6.8 / 8.50
-0.018
10.30
-0.022

Shank Diameter dTolerance (h6)
60
-0.008
7 ~ 100
-0.009
12 / 140
-0.011


For Cutting Conditions, Refer to >>Click here.

More Information


Boring and counterboring processes when drilling bolt holes can be done in a single step to realize a high-efficiency process. (Counterbore Model)
When drilling pilot tap holes, a relief hole can be drilled at the same time, which is ideal for drilling pilot holes in thick sheet metal to provide scrap clearance. (Cutting Model)

Designed for very frequent drilling of pilot holes for M4 – M12 metric coarse thread.
High-efficiency hole drilling is achieved by reducing the chamfering process.

TiAlN Coated Carbide Stepped Drill, For Bolt Drilling / For Drilling Pilot Holes for Screws, with Chamfering Blade:Related Image

Basic Information

Work Material General Steel / Heat-Treated Steel / Stainless Steel / Cast Iron / Aluminum / Copper Tool Material Type Carbide Link Model Straight Shank
Coating Presence Included Coating Type TiAlN Oil-Hole Presence None
Point Angle(°) 140 Thinning Included

Additional Products in this Category

Complementary Products

Tech Support