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9mm Alpha ONSITE+ Impact Step Tip Drill Bit - 1 Pack Carded C9STQRM090

As low as $18.700 /each

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SKU: 12ST9A

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Technical Specifications

Specs - ONSITE Step Tip Drill Bit Alpha.pdf Alpha Onsite Plus Product Catalogue 2025.pdf

More Information
System of Measurement	Metric
Product	ONSITE+ Step Tip Drill Bit
Size	M9 (9mm)
Material	M2 High Speed Steel
Finish	Black & Amber
Length (l)	101mm
Flute Length (fl)	51mm
Maximum Cutting Depth (d)	3x Depth
Suitable For	Steel, Stainless Steel, Wood & Plastic
Point	135° Split Point
Step Tip	Unique Patented Tip
Unique Features	6x FASTER than competitor a Jobber drill
Hex Size (h)	1/4" Hex Quick Change
Closest size in imperial	23/64"
Installation	Power Drills & Impact Driver
Packaging	Eco Packaging Carded
Brand	Alpha

Dimensional data is a guide only. Tolerance differences exist between brands and batches

Description

M9 (9mm) ONSITE+ Impact Step Tip Drill Bits are impact-rated drill bits with a self-centring step-tip geometry that drills without a punch-mark and survives percussive torque without snapping the shank.

About ONSITE+ Impact Step Tip Drill Bits

ONSITE+ Impact Step Tip drill bits have a self-centring step-tip geometry plus a toughened shank built for impact-driver chucks. No chatter at the tip and no snapped shank under percussive torque. 3mm-13mm metric and imperial fractional, the default impact-driver drill bit for steel, alloy and timber on site.

Recommended use General steel, alloy, brass, aluminium and timber drilling. Most cost-effective option for everyday workshop and site work. Holds an edge for hundreds of holes in mild steel when used with cutting fluid.

Also known as

Self-Centring Drill Bit · Step Point Drill Bit · ONSITE+ Drill Bit

Pairs with

Impact Driver Bits · Hex Drive Drill Bits · Self Tapping Screws · Cutting Compound

Frequently Asked Questions

What's a step tip drill bit and how does it differ from a standard twist drill?

The tip has a stepped pre-pilot geometry that self-centres on the workpiece without needing a punch-mark, and a toughened shank that survives impact-driver torque.

Standard twist drills have a chisel edge at the centre that wants a starting dimple to bite into, so they walk on hard or curved surfaces. The step-tip is a tiny pre-pilot built into the bit. It bites and holds first time, every time. The toughened shank is the second half of the design. Standard drill bits snap at the chuck shoulder under impact-driver percussion.

Do I really not need a punch-mark?

Correct. The step-tip self-centres on a flat surface.

Even on hardened steel, stainless or curved surfaces, the step-tip catches and holds. Saves the time of marking, centre-punching and starting carefully. Particularly useful in awkward overhead or angled positions where centre-punching is difficult.

What driver fits this, impact or drill or both?

Both. The 1/4-inch hex shank fits any drill or impact driver, and these bits are rated for impact use without shank failure.

Impact-rated means the shank is harder than the standard drill bit shank, won't snap at the chuck under percussive torque, and the cutting tip is heat-treated to survive impact-driver speeds. They run in a standard drill driver too. They just shine in impact mode.

Can I sharpen the step-tip?

Not really. The step-tip geometry needs a CNC grind to restore. Once the tip wears, replace the bit.

Standard twist drills can be sharpened by hand. Step-tip geometry is precise enough that hand sharpening usually destroys the self-centring action. Treat them as consumables and replace when the tip starts walking again.

What materials does this bit cut?

Steel, stainless, aluminium, timber and most plastics. Not for masonry or hardened tool steel.

The toughened HSS construction handles general engineering materials. For masonry, switch to a tungsten-carbide tipped SDS bit. For very hard tool steel or case-hardened plate, drop down to HSS Cobalt or a carbide drill.

Which one should I pick?

Match the bit to what you're drilling. The quick-pick below shows what BNA stocks in this range and what each one is for.

Quick pick for ONSITE+ Impact Step Tip Drill Bits:

If you are drilling: Sheet metal, panel work, on-site drilling from an impact driver

Pick: Toughened HSS step-tip (impact-rated)

Tiny pre-pilot built into the cutting edge self-centres without a punch-mark. Toughened shank survives impact-driver percussion. The default site-work pick.

Material & Coating

HSS M2 high-speed steel (HSS). The everyday cutting-tool steel for drill bits. Hardness approximately 800 to 900 HV with an operating temperature range up to ~600 degrees C before the cutting edge anneals.

Important Use cutting fluid (light machine oil, kerosene or proper cutting compound) on steel and stainless to keep the cutting edge cool. Without fluid, temperature rises into the annealing range and the edge dulls quickly. Aluminium can be drilled dry; cast iron drills dry.

Resources

Technical library PDFs

For full technical data including key product information, range and a CAD drawing, see our Technical PDFs library.

Measurement conversion calculators

Convert between metric and imperial sizes, gauge to mm, decimal to fraction and TPI to pitch with our measurement conversion calculators.

Metric to imperial conversion

Not sure what 1/4" is in mm (or vice versa)? See our metric to imperial chart for the conversion every drill-bit size customers ask about.

About the Brand

Alpha · Sheffield Group · Australian

Alpha is the Sheffield Group's premium drilling, cutting and fastening brand. Australian-owned, Sheffield has supplied industrial and trade markets since 1957 and is one of the country's largest distributors of cutting tools and accessories.

Range: The Alpha range covers Gold Series HSS jobber drill bits, HSS Cobalt drill bits, Bi-Metal Cobalt holesaws, TurboBORE spade bits, heavy-duty timber augers, SDS Plus masonry bits, countersinks, ONSITE+ impact-rated step-tip drill bits, and the ThunderMax range of impact-driven accessories.

Positioning: Premium-quality, production-grade tools at trade pricing. Same-day dispatch from BNA Brisbane.

Pricing & Delivery

Includes GST, a Tax Invoice and Free Standard Delivery anywhere in Australia.

Buy with Confidence

15+ years selling online · 25,000+ stock lines · 200 million pieces ex-stock in Brisbane QLD.

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Disclaimer

Technical data Researched and compiled from numerous industry sources for the sole purpose of providing basic information. All material is advisory only and its use by anyone is entirely voluntary. Reliance on it for any purpose by anyone is at the sole risk of that person, and Bolt and Nut Australia is not responsible for any loss, claim or damages arising therefrom. In developing this information, Bolt and Nut Australia has made a determined effort to present it accurately.

Measurements Sizes are taken from supplier catalogues or hand-measured and should be used as a guide. Minor variation between batches is normal. We only stock Alpha for this product; substituting another brand is rare and would always be confirmed with you first.

Product Photos & PDF Data Sheets Represent the product type, not exact size. PDFs are a reference guide only. Specifications may change without notice.

If you see any problems with any of our specifications or you require additional information please contact us.

Delivery

Orders UNDER $30

Weigh less than 500grams

Exceptions: Tools, Kits, Bulky items = Sent as a parcel with tracking

Small orders that fit into the slot of your Letterbox are sent:

FREE with Aust Post Letter delivery with NO TRACKING and delivery between 4-12 business days

Select a Quicker delivery service

$7.00 Parcel Delivery 2-7 business days
From $12.00 Express Delivery 1-4 business days
From $14.00 StarTrack PREMIUM Express Delivery 1-3 business days

Click & Collect - Warehouse pickup

Unit 9, 93 Rivergate Place, Murarrie, QLD

Place your order online and we will have it ready within 2 hours. Call if required sooner
Pickup times between 8am - 4pm, Monday - Friday

Orders OVER $30

Weigh more than 500grams

Included is orders under $30 but weigh more than 500grams or wont fit in the slot of your letterbox

Including Large and Bulky heavy orders are sent:

FREE as a Parcel Delivery WITH TRACKING and delivery between 2-7 business days

Select an Express delivery service

From $12.00 Express Delivery 1-4 business days
From $14.00 StarTrack PREMIUM Express Delivery 1-3 business days

Click & Collect - Warehouse pickup

Unit 9, 93 Rivergate Place, Murarrie, QLD

Place your order online and we will have it ready within 2 hours. Call if required sooner
Pickup times between 8am - 4pm, Monday - Friday

All delivery dates are estimated and depend on stock availability, delivery location, service chosen, size of order, time of year, when order was placed e.g long weekends or sale periods.

Further delivery information can be found on our Delivery page

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Supplier Details

MPN	C9STQRM090
UPC	9313601021840