Dewalt HSS 20 → 34mm Step Drill Bit, 9 Steps, 34mm Max Drilling Thickness

  • RS Stock No. 706-8615
  • Mfr. Part No. DT5031-QZ
  • Manufacturer DeWALT
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): GB
Product Details

Dewalt HSS Step Drill Bits

Introducing a range of HSS step drill bits from Dewalt. These high-speed steel step drills offer the perfect alternative to conventional drills, they 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.

Why would you buy a step drill bit?

A step drill bit is a single piece accessory with optimized flute angles. It offers a unique tip design that eliminates movement and increases drilling speed. They are compatible with any power tool that incorporates a chuck, for example; cordless drill drivers.

Features and Benefits

• HSS drill bits
• Drill various hole diameters
• Hole diameters engraved
• For drilling and enlarging existing holes from 14mm up to 34mm
• Clean and accurate cuts in the toughest materials
• Compatible with power tools

Step Drill Bit Options

• DT5026-QZ - 4 to 12 mm = RS stock no: 706-8609
• DT5027-QZ - 8 to 18 mm = RS stock no: 706-8602
• DT5030-QZ - 14 to 25 mm = RS stock no: 706-8606
• DT5031-QZ - 20 to 34 mm = RS stock no: 706-8615

What material will they cut?

Typical materials include;
• Steel
• Iron
• Graphite
• Nickel
• Brass
• Wood

Application Information

Step drill bits are typically used in electrical, plumbing and HVAC applications. They are compatible with corded or cordless power tools.


How good are step drill bits?
A step drill bit is an accessory that gets overlooked, the working principle is so simple you can drill multiple size holes without changing the bit and achieve a nice clean finish every time.

Can a step drill bit be used with a stationary drill machine?
Yes, step drill bits are compatible with portable hand power tools as well a stationary drilling machines.

What is the downside of using a step drill bit instead of a conventional drill bit?
Step drill bits require a pilot hole being made in the material the size of the first step, a conventional drill bit on the other hand typically only requires a counter punch hole.

Attribute Value
Drill Bit Type Step Drill Bit
Number of Steps 9
Maximum Drilling Thickness 34mm
Material HSS
Minimum Head Size 20mm
Maximum Head Size 34mm
On back order for despatch 12/06/2020, delivery within 5 working days from despatch date.
Price (ex. GST) Each
$ 142.64
(exc. GST)
$ 164.04
(inc. GST)
Per unit
1 +
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