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MS31
Honglin
Yangjiang,Guangdong,China
double action OTF
replaceable blade
#24 blade
2 mm
5.5 cm (2.17 in.)
8 cm (3.15 in.)
13.5 cm (5.31 in.)
carbon steel
zinc alloy
yes
multifunctional
green
available
black box+polybag
available
64g
89g
OTF Scalpel Knife with Replaceable Blade | OEM Manufacturer
The MS31 OTF Scalpel is a compact, dual-action out-the-front cutting instrument engineered for industrial users, lab technicians, warehouse crews, and EDC enthusiasts. Its die-cast zinc alloy handle houses a smooth #24 carbon steel blade that deploys and retracts with one-hand slide control. At 13.5 cm open / 8 cm closed and only 64 g net (89 g with packaging), it delivers surgical-level sharpness for cardboard, film, tape, leather, rubber, and precision craft work. Ships in a protective black box + polybag. As a direct Yangjiang, Guangdong, China manufacturer, we supply bulk wholesale, OEM logo engraving, and custom color options with stable monthly capacity.
Specification
| product name | zinc alloy handle interchangeable blade double action auto utility edc pocket knife |
| function | open package, envelope, cut tape, open mail, box cutting, leather crafting, daily use, EDC, outdoor survival, etc. |
| mechanism | double action automatic OTF |
| blade material | carbon steel |
| handle material | zinc alloy |
| blade thickness | 2 mm |
| blade length | 5.5 cm ( 2.17 in.) |
| handle length | 8 cm ( 3.15 in.) |
| blade feature | detachable & replaceable blades |
| total length | 13.5 cm ( 5.31 in.) |
| replacement blade | 10 pieces |
| customization | available |
| color | various colors available |
| net weight | 64 g |
| gross weight | 89 g |
Picture
FAQ
A: The MS31 uses a universal #24 carbon steel scalpel blade . It is fully interchangeable with standard #24 refills, making blade replacement simple and cost-effective. The OTF channel keeps the blade precisely aligned for clean, accurate cuts every time.
A: The MS31 features a dual-action OTF slide—push the actuator forward to deploy the blade smoothly from the front of the handle, and pull it back to retract it fully into the zinc alloy housing. This one-hand operation is faster and safer than folding knives, eliminates pivot wear, and keeps the tool pocket-safe when closed.
A: Absolutely. The handle is made from die-cast zinc alloy, which offers excellent rigidity, impact resistance, and dimensional stability. The green-and-black finish is both scratch-resistant and professional in appearance. It is ideal for high-volume industrial distribution and demanding daily cutting tasks.
A: The high-hardness carbon steel blade is designed for versatile precision cutting, including corrugated cardboard, carton sealing tape, vinyl film, leather, rubber gaskets, craft paper, and model-making materials. It is a reliable tool for warehouse staff, lab technicians, leather craftsmen, and DIY enthusiasts alike.
A: Yes. As Honglin Industrial Co., Ltd., a direct manufacturer based in Yangjiang, Guangdong, China, we provide:
Low MOQ for mixed-model container orders
Laser/UV logo engraving on zinc handle
Custom anodized/painted colors (green, black, orange, etc.)
Standard pack: black gift box + polybag (custom EVA inserts & display cards available)
Stable monthly production capacity, FOB Yangjiang/Shenzhen quotes within 24 hours
We are the trusted B2B supplier for global industrial distributors, hardware brands, and private-label retailers.
