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Category Archives: Workshop Tools

Making a Trepanning Tool – Notes and Plans

I’m planning on cutting some gear wheels and, having struggled with using a hole-saw to cut blanks, decided a trepanning tool was probably the answer. The tool is only meant for cutting 1/8″ thick stock. Tested on brass and aluminium (may not be up to the job with steel). Use low speeds and if you […]

Model Engineers Depth Gauge

Having recently faced some cylinder drilling, I finally got around to making a depth gauge. It took about a morning. The sizing is very-much determined by available parts, starting from the springs and having some 3/8″ OD brass tube with nice thick walls (ID approx 1/4″) to hand. Two springs gave me about the 1 […]