4 Precision Oiler Pens: made from machined aluminum, these pens feature a fine-touch needle and a 15ml reservoir, allowing you to precisely control the amount of lubricant applied, for precise application in tight spaces and on delicate mechanical parts
Leak-proof Design: each pen comes with a screw-on protective cap and replaceable O-rings (7 cap and 6 needle) for a tight seal, effectively preventing lubricant leaks; A convenient pocket clip allows for easy portability
Controllable Oil Quantity: when you press the button, the tapered brass plug at the needle tip extends outward, allowing the lubricant to flow; Releasing the button instantly stops the flow; Every 10 drops, the screw cap unscrews, allowing the oil to continue flowing freely, making it easy to control the amount of oil delivered
Wide Applications: suitable for cleaning and lubricating firearms, maintaining bicycle derailleurs, door hinges, sewing machines, brake pedal pivot points, and even lubricating precision instruments like watches and pianos
Durable and Portable: the sturdy machined aluminum pen body ensures long-term use, and it comes with a convenient pocket clip for easy portability; It is a professional-grade lubrication tool that is readily available to mechanics, gunsmiths, and DIY enthusiasts