Step Drill Bits

Step drills are an efficient way of drilling multiple sized holes in a piece of work without the need to frequently change bit sizes. Their stepped cone shape allows for multiple diameter cutting surfaces on one drill bit along a short distance. This construction helps to produce cleaner holes as the bit cuts incrementally larger holes as it passes through the material. This method stops the need to switch between multiple drill bit sizes when working from a small pilot hole up through to holes 40mm or more.

Features and Benefits
• Time saving
• Multiple hole sizes from one bit
• Cleaner cut holes
Where might I use one?
Step drills are suitable for materials such as metal, wood and acrylic and can be used in both hand and pillar drills. Always consider the materials you are working with when purchasing a stepped drill bit due to their shortened length when compared to traditional twist drill bits.

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Description Price Number of Steps Drill Diameter Maximum Drilling Thickness Material Minimum Head Size Maximum Head Size
RS Stock No. 232-507
BrandRS PRO
TWD2,817.00
Each
units
11 6 → 36mm 5mm HSS 6mm 36mm
RS Stock No. 508-8948
Mfr. Part No.05310
BrandEXACT
TWD2,861.00
Each
units
11 7 → 30.5mm 6mm HSS 7mm 30.5mm
RS Stock No. 706-8606
Mfr. Part No.DT5030-QZ
BrandDeWALT
TWD1,609.00
Each
units
9 14 → 25mm 25mm HSS 14mm 25mm
RS Stock No. 123-8513
BrandRS PRO
TWD1,198.00
Each
units
10 - - HSS 4mm 22mm
RS Stock No. 232-490
BrandRS PRO
TWD3,206.00
Each
units
15 6 → 40mm 3mm HSS 6mm 40mm
New
RS Stock No. 194-7932
Mfr. Part No.D-40179
BrandMakita
TWD1,004.00
Each
units
- 6.3 → 20.5mm 20.5mm - - 1/4in
RS Stock No. 499-425
Mfr. Part No.4407023
BrandEXACT
TWD2,842.00
Each
units
13 6 → 30mm 4mm HSS 6mm 30mm
RS Stock No. 123-8510
BrandRS PRO
TWD1,088.00
Each
units
9 - - HSS 4mm 12mm
RS Stock No. 508-9121
Mfr. Part No.07002
BrandEXACT
TWD1,869.00
Each
units
- 4 → 20mm - HSS 4mm 20mm
RS Stock No. 499-441
Mfr. Part No.4450061
BrandEXACT
TWD959.00
Each
units
9 4 → 12mm 5mm HSS-TiAlN 4mm 12mm
RS Stock No. 399-0962
Mfr. Part No.T3011
BrandCK
TWD3,192.00
Each
units
12 6 → 30mm - HSS 6mm 30mm
RS Stock No. 508-9137
Mfr. Part No.07001
BrandEXACT
TWD1,367.00
Each
units
- 4 → 12mm - HSS 4mm 12mm
RS Stock No. 232-591
BrandRS PRO
TWD2,065.00
Each
units
6 PG7 → PG21 3mm HSS PG7 PG21
RS Stock No. 499-429
Mfr. Part No.4407022
BrandEXACT
TWD2,147.00
Each
units
9 4 → 20mm 4mm HSS 4mm 20mm
RS Stock No. 123-8511
BrandRS PRO
TWD2,032.00
Each
units
13 - - HSS 5mm 35mm
RS Stock No. 232-563
BrandRS PRO
TWD2,454.00
Each
units
14 4 → 30mm 3mm HSS 4mm 30mm
New
RS Stock No. 194-7926
Mfr. Part No.D-40113
BrandMakita
TWD790.00
Each
units
- 4 → 12mm 20.5mm - - 1/4in
RS Stock No. 123-8514
BrandRS PRO
TWD1,160.00
Each
units
- - - HSS 16mm 25mm
New
RS Stock No. 194-7931
Mfr. Part No.D-40163
BrandMakita
TWD2,563.00
Each
units
- 6.3 → 20.5mm 20.5mm - - 6mm
RS Stock No. 123-8509
BrandRS PRO
TWD3,056.00
Each
units
12 - - HSS 6mm 30mm