OHTO Conception Metal Mechanical Pencil

OHTO Conception Metal Mechanical Pencil

The OHTO Conception Metal Mechanical Pencil is an exceptional Japanese drafting instrument engineered for supreme adaptability and technical precision. Constructed with an aluminum body and knurled brass grip, the Conception features dual writing modes and an adjustable lead advancement dial, making it indispensable for architects, designers, and discerning stationery connoisseurs.

Key Features

• Dual-Mode Functionality: Easily switch between Drafting Mode with a fixed 4mm guide pipe for ruler work, and Lead Guard Mode where the sliding sleeve cushions lead to prevent breakage during fast writing.
• Adjustable Lead Regulator: Rotate the dial to customize the exact lead advancement per click from 0.2mm to 2.0mm to match your personal writing pressure.
• All-Metal Body with Brass Grip: Balanced aluminum barrel combined with a finely knurled brass section provides comfortable, non-slip drafting control.
• Lead Hardness Indicator: Integrated window lets you display current lead grades (HB, B, 2B, etc.) at a glance.
• Precision 4mm Guide Pipe: Provides unobstructed line of sight against straightedges, templates, and drafting rulers.

Specifications

• Brand: OHTO
• Model: Conception (SP-1503C / SP-1505C)
• Available Lead Sizes: 0.3 mm, 0.5 mm
• Body Material: Aluminum and Brass
• Length: 141 mm
• Diameter: 10.0 mm
• Weight: Approx. 19.3 g
• Country of Origin: Japan

Frequently Asked Questions

• What does the dual-mode switch do? Twisting the grip alternates between Drafting Mode (rigid 4mm guide pipe for precision lines) and Lead Guard Mode (sliding guide pipe that protects the lead against breakage).
• How does the lead regulator dial work? Rotating the adjustment ring controls the lead extension distance produced by each push button click, adjustable between 0.2mm and 2.0mm.
• Is the OHTO Conception suitable for daily note-taking as well as drafting? Yes, Lead Guard Mode is specifically designed for standard daily handwriting and note-taking to minimize lead snaps.
• What lead grades does the indicator support? The built-in indicator can be set to common lead grades including HB, B, 2B, and F.
• Does this pencil feature an eraser? Yes, a replaceable drafting eraser is housed under the metal push button cap.