Fangrui Product Details Long Nose Deep Hole Pen Tip: This Set Of Pencils Has 6 Mechanical Hole Marking Pencils And A 1.77-inch Long Nose Deep Hole Pen Tip, Which Can Accurately Mark In Narrow Spaces And Deep Holes. For Precise Woodworking And Construction Projects. Built In Sharpener: This Woodworking Pencil Marker Enjoys The Convenience Of A Built-in Sharpener, Ensuring That It Remains When Needed. No Longer Looking For A Pencil Sharpener Or Dealing With Boring Pencils. Maintain Efficient Production. 18 Refill Replacements: These Architectural Pencils Are Equipped With 18 High-quality 2.8mm Refills. You Have Sufficient Leads To Handle Any Woodworking, Drawing, Or Construction Tasks Without Interruption. Widely Used: These Mechanical Pencils Are Suitable For Professionals And Enthusiasts, Specializing In Woodworking, Drawing, Construction, And Construction Projects. Versatility And Reliability Come Together. High-quality Abs Material: Crafted With Durability In Mind, These Deep Hole Marking Pencil Are Made F