Which hole diameters can you drill with this step drill bit?

This step drill bit has 10 steps: 5 mm, 7.5 mm, 10 mm, 12.5 mm, 15.2 mm, 18.6 mm, 20.4 mm, 22.5 mm, 25.5 mm, and 28.3 mm.

What materials is the Irwin PG29M10 suitable for?

It is suitable for thin sheet materials such as mild steel, copper, brass, aluminium, plastic, plexiglass, and wood.

Do you need to use a centre punch before drilling?

No, the self-centring tip prevents walking and eliminates the need for centre punching.

What type of shank does this bit feature?

It features a flatted shank to prevent slipping inside the drill chuck.

What are the specific diameters like 15.2 mm and 28.3 mm designed for?

These step sizes correspond to standard PG conduit thread dimensions for electrical cable glands.

IRWIN PG29M10 step drill with hole sizes 5-7.5-10-12.5-15.2-18.6-20.4-22.5-25.5-28.3 mm - 10502855

Name: IRWIN PG29M10 step drill with hole sizes 5-7.5-10-12.5-15.2-18.6-20.4-22.5-25.5-28.3 mm - 10502855
Brand: IRWIN
SKU: 51070137
Price: 62.8 EUR
Availability: InStock

Supplier number: IRWIN 10502855 | EAN 0038548100043

Recommended Retail Price €99.69

62.80 tax incl.

€51.90 excl. VAT (incl. all environmental contributions)

On stock - immediately available | we have 5 products in stock.

Delivery by DHL

✆ Talk to a specialist

Precise drilling with Irwin

Practical benefits

Fast start without walking: The self-centring tip prevents drill wandering so you can begin drilling immediately without using a centre punch.
True round hole creation: The single-flute design gives you maximum control across all 10 steps to produce clean, round openings in sheet metal.
Secure non-slip chuck grip: The flatted shank prevents slipping inside your drill chuck so you maintain steady torque and control.

In a nutshell

The right choise for

With the Irwin PG29m10 step drill bit, you can drill multiple hole sizes into thin sheet materials quickly and accurately without constantly swapping bits. Featuring 10 steps from 5 mm up to 28.3 mm, it makes drilling precise openings for pg conduit threads and cable glands in enclosures and cabinets effortless. The self-centring tip prevents drill wandering, allowing you to start immediately without using a centre punch. When working in mild steel, copper, brass, aluminium, or plastic, the single-flute design ensures true round holes and maximum cutting control. In addition, the flatted shank prevents slipping in your drill chuck for steady torque.

Product information FAQ

€62.80

In stock - tax incl.

Key features according to our expert

Smallest diameter: 5 mm
Largest diameter: 28,3 mm

Product description

Designed for precise drilling in thin materials
Self-centring tip does not slip and eliminates the need for hammering a centring point
Chrome vanadium steel drill body is hardened to 56 HRC for long life
Double ground cutting edge with single chip screw for extra chip capacity, drilling truly round holes and maximum step control
Suitable for mild steel, copper, brass, aluminium, plexiglass, plastic, wood and laminate
Flattened shank prevents the chuck from slipping in the chuck
Laser-etched dimensions in the chip flute for easy and permanent hole size determination

All Features

Smallest diameter: 5 mm
Largest diameter: 28,3 mm

Brand IRWIN
51070137
EAN 0038548100043
Supplier number IRWIN 10502855

Frequently asked questions about this product

Answered by specialists

Which hole diameters can you drill with this step drill bit?: This step drill bit has 10 steps: 5 mm, 7.5 mm, 10 mm, 12.5 mm, 15.2 mm, 18.6 mm, 20.4 mm, 22.5 mm, 25.5 mm, and 28.3 mm.
What materials is the Irwin PG29M10 suitable for?: It is suitable for thin sheet materials such as mild steel, copper, brass, aluminium, plastic, plexiglass, and wood.
Do you need to use a centre punch before drilling?: No, the self-centring tip prevents walking and eliminates the need for centre punching.
What type of shank does this bit feature?: It features a flatted shank to prevent slipping inside the drill chuck.
What are the specific diameters like 15.2 mm and 28.3 mm designed for?: These step sizes correspond to standard PG conduit thread dimensions for electrical cable glands.