Amazon.com: PFERD 61837 Type 16 Round Nose Cone, Aluminum Oxide, 2-3/4" Diameter x 3-1/2" Length, 5/8-11 Thread, 13200 RPM, 16 Grit : Industrial & Scientific
Pferd Diamond Needle File Set, 5-Piece, Grit Size D 126, 5-1/2 inch, in Durable Plastic Box, 04025 – For Universal Use in Tool Making: Hand Files: Amazon.com: Tools & Home Improvement