C193 Squarehead

The C193 Squarehead Folder was introduced in 2015 and despite using a "clipit" C-SKU, does not actually have a clip.

Appearance in catalogs

The C193 Squarehead appeared in the following catalogs:

• 2015 Spyderco Mid-Year Supplement (C193TIP)

Designer

Darriel Caston

Information from the Spyderco catalog on the web

C193 Squarehead Folder:

"Darriel Caston is an electrical and electronic engineer by trade who has been designing and making custom knives part-time since 1992. His fascination with small folding knives and mechanical gadgets is clearly reflected in his first Spyderco collaboration: the Squarehead™. A compact, elegantly simple pocketknife with a shape that inspired its name, the Squarehead offers cutting performance far beyond its diminutive size and does it with a high-precision, high-tech flair.

The heart of the Squarehead is its uniquely square-shaped sheepfoot blade machined from CPM® S30V® powder metallurgy stainless steel. Its single-sided, flat chisel grind provides excellent edge geometry and strength and allows the PlainEdge™ cutting edge to lie safely against the handle scale. A Trademark Round Hole™ in the blade proudly identifies the Squarehead as a Spyderco product and allows easy one or two-handed opening.

The Squarehead’s unique single-sided handle is machined from a solid piece of titanium. Its one-piece construction includes an integral back strap that also serves as a blade stop and a guard for the edge when the blade is closed. It also houses an integral LinerLock-style mechanism that locks the blade securely in the open position. Amazingly small and lightweight, the Squarehead does not include a pocket clip, but features a wide slot in the handle for easy attachment of a chain, fob, or lanyard. Assembled with screw-together construction to ensure the precise alignment of all parts, the blade, handle, and other key components of the Squarehead feature an attractive matte stonewash finish."

The C193 Squarehead in Spyderco's online catalog

Variations

The C193 Squarehead is made in Taiwan and has:

• Integral Walker Liner Lock-style mechanism
• Sheepfoot blade
• No clip
• Wide slot on handle for easy attachment to a chain, fob, or lanyard.

SKU	Handle	Edge(s)	Steel	From/To	MSRP	Note	Number made	Grind	Clip	Clip positions	Collectors club
C193TIP	Matte stonewashed Ti	PE	Matte stonewashed CPM-S30V	May 2015-end 2017	129.95$ (2015)		Regular production	Single sided, flat Chisel	None	N/A	Main
C193PBK	Black FRN	PE	Satin CTS-BD1	Nov. 2017-Sept. 2019	$79.95 (2017), $80.00 (2019)		Regular production	Single sided, flat Chisel	None	N/A	Variant
C193PGY	Gray FRN	PE	Satin CTS-BD1	Nov. 2017-Sept. 2019	$79.95 (2017), $80.00 (2019)		Regular production	Single sided, flat Chisel	None	N/A	Variant

Most collectible variation

Questions regarding collecting the C193

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Technical information

Measurements (mm and grams) of the C193 Squarehead:

Variation	Length overall	Length closed	Length blade	Length edge	Hole Ø	Blade thickness	Weight
C193TIP	84mm	51mm	33mm	32mm	14.8mm	3mm	31g

Measurements (inches and ounces) of the C193 Squarehead:

Variation	Length overall	Length closed	Length blade	Length edge	Hole Ø	Blade thickness	Weight
C193TIP	3.30"	2"	1.30"	1.25"	0.583"	0.118"	1.1oz