#15 Scalpel Blade: Uses, Handle Fit and #15 vs #15C

This is the #15 scalpel blade, not a #15 clipper blade for dog grooming. It has a small curved cutting edge made for short, precise cuts, and it fits #3 and #7 handles, not the #4. Need long, smooth strokes? Use a #10. Need extra reach from the same small edge? Use a #15C.

Not medical advice. We quote the maker on how surgeons use the #15 only to explain the shape. Our blades are sold for craft, hobby, study, dissection and suture practice, not as medical devices.

The #15 blade at a glance

Spec	#15 scalpel blade
Shape	Small curved cutting edge. Swann Morton calls it “the most popular blade shape”.
Fitting	No. 3 range (blade shapes 6 to 16)
Fits these handles	#3 and #7 in our store. Swann Morton lists handles 3, 3L, 3 Graduated, 5B, 7, 9, B3 and B3L.
Does not fit	#4 handle
Same curve, longer edge	#15C, on the same #3 and #7 handles. Swann Morton: “a longer, more extended cutting edge than the traditional No.15 blade”.
Same shape, bigger	No direct twin on the #4 fitting. For a larger curved edge, take the #10 on the same handle, or the #20, #21 and #22 on a #4 handle.
Our packs	Carbon steel, 10 blades, each in its own sterile foil pouch (gamma radiation, as declared by the manufacturer)
Edge length	Not published by the maker, so we do not print one

What a #15 blade is used for

The small curve is the point. A short, tightly curved edge lets you turn through a tight line or a small radius without the blade swinging wide, so short cuts stay precise.

Job	Why the #15 works	Also look at
Suture practice pads	Short, controlled practice incisions	#10 for longer ones
Electronics, PCB and phone repair	Small, accurate cuts around components and adhesive	#11 for points and tight corners
Scale models and miniatures	Trimming and shaping small parts	#11 for corners
Clay and sculpture	Fine detail and small curved cuts	#12 for hooked cuts
Small dissection	Fine detail on small specimens	#10 for general dissection

In surgery, Swann Morton says the No. 15 is “ideal for making short and precise incisions” (Swann Morton No. 15 product page, read 11/11/2026). That is the maker’s description of clinical use, not a use we sell for.

#15 vs #15C

The two have the same small curve and fit the same handles. The difference is the edge: the 15C has a longer, more extended cutting edge, so it reaches further.

Blade	Shape	Reach	Our products
#15	Small curved edge	Standard	Set, blades, disposables
#15C	Same curve, longer and more extended edge	Extra reach	Set, blades, disposables

Swann Morton says the 15C “provides additional reach” and describes it for periodontal work, ideally with its B3 handle (Swann Morton No. 15C product page, read 11/11/2026).

The quick rule: pick the #15C when a deep or narrow spot keeps the standard #15 out of reach, and the #15 for everything else. Comparing it with the #10? That is in our #10 blade guide. The full chart for every number is in our scalpel blade sizes guide.

Which handle fits a #15 blade?

A #15 goes on a #3 handle, the standard flat handle, or the #7 handle, which is longer and slimmer. The #15C fits the same two. Neither will lock onto a #4 handle: the No. 4 fitting is larger. More on fittings in our scalpel handle sizes guide.

Shop #15 blades

No handle yet? Take the set. Have a #3 or #7? Take the blade pack. Want a fresh edge with nothing to fit? Take the disposables.

#15C

The same three options in the longer-reach shape.

For suture practice

The #15 is the first blade we point to for practice incisions on suture pads. We do not sell the pads, so we link none, but the #15 set gives you a handle and ten blades to practise with.

Fitting and changing a #15 safely

• Fit and remove blades with pliers or a blade remover, never your fingers.
• Carbon steel can rust: dry the blade after use and store it dry.
• Drop used blades into a blade disposal box, never the bin.

Frequently asked questions