- Alcyone G-10 Grey, CTS-BD1N Plain, an undersized, handy EDC knife. With a wide, versatile blade, it will perform surprisingly well in any activity, and the moled G10 facings will prevent slipping out of your hand. Another excellent design from Spyderco!

This product is intended for use only by adults with knowledge and experience in handling sharp cutting tools. Improper use of the knife can result in serious injuries. The blade is extremely sharp and can easily cut through skin and tissue; therefore, extra caution should always be exercised while cutting, and hands should be kept away from the cutting edge. To prevent the knife from slipping, it is recommended to cut on a stable, non-slip surface and avoid excessive force, which may cause uncontrolled blade movement.
Leaving the knife on the edge of a table, countertop, or in easily accessible places—especially where children are present—poses a significant safety risk. The knife should always be properly secured after use, ideally by placing it on a stable surface or storing it in designated knife blocks, protective sheaths, or magnetic strips. The knife should never be used for tasks it is not designed for, such as opening cans or prying objects, as this can damage the tool and lead to dangerous accidents.
A dull blade increases the risk of injury, as it requires more force and is more likely to slip from the material being cut. Therefore, it is essential to sharpen the knife regularly to maintain optimal sharpness. Additionally, proper cleaning and drying of the knife are necessary to prevent corrosion and bacterial growth. Periodic inspection of the handle and blade is recommended to check for cracks, chips, or looseness. If any damage is detected, the knife should be repaired or replaced immediately.
When using the knife, focus solely on the task at hand—avoid talking on the phone, watching television, or other distractions while cutting. Ensure proper lighting in the workspace for better visibility and control. Please note that some countries or regions have laws restricting the ownership and carrying of knives. Before purchasing or using this knife, verify that its use is legal in your location according to applicable regulations.
Following these safety guidelines will help ensure safe and effective knife use, minimizing the risk of accidents and extending the lifespan of the tool.
Alcyone G-10 Grey, CTS-BD1N Plain, an undersized, handy EDC knife. With a wide, versatile blade, it will perform surprisingly well in any activity, and the moled G10 facings will prevent slipping out of your hand. Another excellent design from Spyderco!
CTS BD1N - American martensitic stainless steel with high carbon, chromium and nitrogen content. Designed and manufactured in the USA by Carpenter Technology Corporation as an improvement of CTS-BD1 steel, but with a higher working hardness of up to 63 HRC. Noticeable differences are the lack of vanadium and the 0.10%-0.15% nitrogen content, which produces almost 4 times as many atoms as vanadium. CTS-BD1N has more chromium, manganese and silicon in its composition for better performance. It performs well as a knife steel with high corrosion resistance. It provides better strength and noteworthy edge-holding ability, as well as a fine-grained structure.
Blade - Leaf-Shaped (leaf-shaped) finished in an elegant Satin finish. It opens with the SpyderHole, which is enlarged to 14 mm, a round hole in the wedge, so it can be used by right- and left-handed people without any problems. The small thickness of the blade, combined with the Full Flat grind, ensures exceptional cutting performance, transferring power to the blade's tip and providing better point strength. On the back you'll find a perfectly executed "jimping", a notch on which you can place your finger thus improving your grip and control of the knife during use. The whole thing is locked with a solid Liner Lock.
The handle - is a thick piece of gray G10, a plastic formed from fiberglass compressed under pressure with synthetic resin. The open-backed design, fixed with steel spacer sleeves, reduces weight and facilitates cleaning. The simplicity and robustness of the design provide assurance of many years of use. The four-position (right/left, up/down) stainless steel clip, decorated with the company's symbol, allows the knife to be carried in tip-up and tip-down positions. In the back of the Lanyard Hole, a hole for attaching a safety or decorative cord.
Technical data:
Product number: C222GPGY
Product name: Alcyone G-10 Grey, CTS-BD1N Plain
Overall length: 179.0 mm / 7.04"
Blade length: 74.0 mm / 2.91"
Handle length: 105.0 mm / 4.13"
Thickness of blade: 2.8 mm / 0.11"
Handle thickness: 10.7 mm / 0.42"
Weight: 94.0 g / 3.3 oz
Blade material: CTS-BD1N
Blade hardness: n.d.
Blade grind: Full Flat
Blade finish: Satin
Handle material: G10
Handle finish color: Gray
Backspacer material: Stainless Steel (spacer sleeves)
Backspacer color: Silver
Clip: Right/Left Carry, Tip-Up/Tip-Down
Clip material: Stainless Steel
Pivot mechanism: Pads
Locking mechanism: Liner lock
Opening method: Manual, thumb hole
Additional accessories: None
Designer: Spyderco
Brand: Spyderco
Manufacturer: Spyderco, U.S.A.
Country of Origin: P.R.C
Development: the Sharg® company