Replacement T-pin for hole punch, nickel-plated steel, (1) 2-3/8x1-1/8x1/4 inch T-shaped 1.5mm pin and (1) 2-3/8x1-1/8x1/4 inch T-shaped 2mm pin. Sold per pkg of 2. - Fire Mountain Gems and Beads
LineMak Mini Camera for Indoors, 1/4" HD Digital Sensor, 700TVL, 3.7mm Pinhole Lens, for DVR or Surveillance Systems.
Marshall Electronics V-ZPL06MZ 4mm to 20mm f/2.5 V-ZPL-06MZ B&H
0.6mm Laserdrilled Pinhole XL 1 1/4" Holder Large Format 4x5 Camera photography | eBay
QILENS HD 2MP Mini Lens 2.1mm M12 Pinhole Lens F2.0 1/4" | eBay
Kreg Shelf Pin Jig - 1/4" Shelf Pin Drilling Jig | KregTool.com Official Store | Kreg Tool