Complete Guide · Updated 2026

How to Start a Knife Sharpening Business

I started Seriously Fast Sharpening in 2024 out of my garage with a $240 sharpener and a phone. Within two months I was doing $300+ days. Here is everything I learned, pricing, equipment, technique, and the marketing that actually works.

By Michael Kempf · Seriously Fast Sharpening, Austin TX

Why Knife Sharpening?

I spent five years doing web development and ecommerce. Before that, maintenance, painting apartments, fixing water heaters, working with my hands. When I saw a post from a college kid making $500 a day sharpening knives, I knew right then: I could do this.

Under $300

Startup cost

$200 – $400

Typical day

Over $700

Best day

Equipment

$240

Work Sharp Ken Onion Elite

With blade grinder attachment. Fast, portable, versatile. Handles chef knives to lawnmower blades. Under 2 minutes per knife once you have the technique.

, Belts from Cliff Curry -- 120, 400, 600 grit + leather strop
, Good stropping compound (smooth-applying, not chalky)
, Isopropyl alcohol (91%+) -- wipe blades clean before and after
, Shop towels or microfiber cloths -- microfiber preferred, won't scratch the blade
, Full-face shield or safety glasses -- metal sparks fly, non-negotiable
, Dust mask or respirator (N95 minimum) -- fine metal dust builds up fast
, Riser platform upgrade for consistent angles (sold separately)
, Practice knives from a resale shop -- never learn on customer blades
, Portable power station for mobile work

Full breakdown: Best Sharpening Equipment for Beginners

Technique: Knife in Under 2 Minutes

Inspect the blade

Look for chips, tip damage, and the existing angle. Check if the bolster needs reduction.

Set your angle

Wusthof runs 14°, most German knives 15–20°. Check the knife angle wiki for every brand.

Establish a burr

Work one side on 400 grit until you feel a wire edge running the full length. Do not skip this.

Match your strokes

Count your passes on side one, then do the same number on side two. Equal removal keeps the profile straight.

Progress through grits

Move up to 600 grit, then to the stropping belt. 8 passes per side, down to 2, 2, 1, 1, light, light.

Deburr at low speed

Always strop at low speed. High speed on a polishing belt burns your edge and undoes your work.

Test and deliver

Slice Rizla green cigarette paper. Clean cut = ~150 BESS. Utility razor sharp. Every knife, every time.

Most common mistake: not establishing a full burr before flipping the blade. Nine times out of ten, if the knife is not getting sharp, that is why. Feel for it along the entire edge before moving on.

Pricing

Size	Length	Price
Small	1 – 3 inches	$8
Medium	Over 3 – 7 inches	$10
Large	7 inches and above	$15
Chip / tip repair	Any size	+$5 flat
Mobile travel	$150 min order	$1/min one-way

Full earnings breakdown: How Much Knife Sharpeners Make

Marketing That Actually Works

Google My Business

The single most important setup. Most sharpeners get the majority of their business from Google searches. Complete your profile, add photos, and collect reviews fast.

Facebook Groups

Join every local community group in your area and post your services. More customers from Facebook than Instagram, by a long shot.

Yard Signs

Busy intersections around town with your phone number. Simple, cheap, and effective.

Word of Mouth

Follow up 2 hours after every pickup. 'How are the knives?' One happy customer tells five people.

B2B Outreach

Restaurants, grooming salons, landscaping companies. Offer recurring contracts. This is where the real long-term money is.

FAQ

Is knife sharpening a good business?

Yes. It is one of the best service businesses you can start right now. The overhead is tiny, demand never goes away, and you can start making money within your first two weeks. Michael Kempf went from zero to $300 days in two months.

How much can you make sharpening knives?

Beginner sharpeners can earn $50 to $80 per hour. Experienced sharpeners can earn $100+ per hour. Full-time operators can earn $300 to $700+ per day. Your results will vary by market and effort.

What do I need to start a knife sharpening business?

The Work Sharp Ken Onion Elite ($240), quality belts, stropping compound, practice knives, a Google My Business profile, and a simple website. A riser platform and portable power station are recommended upgrades.

Can you make money sharpening blades?

Yes. Kitchen knives, lawnmower blades, shears, pruners, anything with an edge can be sharpened for profit. Commercial contracts with restaurants and landscaping companies provide recurring revenue.

Austin, TX

Need your knives sharpened now?

Free porch pickup across most of Austin. Pay when we return your blades.

Book Now, No Upfront Payment

Accelerator Program

Real Student Results

15+ people have gone through our Accelerator program. Here's what happened:

“This is the first course that actually made me prove I did the work. That's exactly why it worked.”

Taylor

Accelerator Member, 2024

“I had no idea this was even a business. Now I have regular customers and I'm ranking in my city.”

Kenny

Accelerator Member, 2024

“His first month results after reaching out. He didn't expect it to move this fast.”

Marcus

Accelerator Member, 2025

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