Mechanical Metal Marking Pencil: This mechanical welder's pencil features a built-in sharpener and pocket clip for convenient carrying and use. Simply press to advance the refill, eliminating the need for manual sharpening of traditional wooden pencils. Illuminate Silver Marking: The silver round refills provide bright, visible markings on metal and oily surfaces, maintaining performance even in high-temperature welding environments. Compared to soapstone, the markings are more resistant to abrasion and less likely to be erased. 3-Claw Refill Holder: The three-claw nib design securely holds the refill to prevent breakage and allows quick adjustment of refill length for precise marking in deep or tight areas. Widely Applicable: Suitable for a variety of applications including steel welding, architectural design, sheet metal and steel scribing, carving, and general metal layout tasks. Material: Metal Color: Red Package Contents: 1 x pen 1 box x refill (12 pcs) Note: Light and display differences may cause slight variations in color between the image and the actual item. Measurement error allowance is +/- 1-3 cm.