ドリルを使う穴の開け方
アメリカでかったガチャガチャのキーを無くしてしまいました。困っていたところ、友人がドリルで穴をあけて鍵を壊すという方法がオフィシャルに書いてあると言って覗いてみましたが細かいところがわかりません。
1/4インチ(6mm)程度の穴をあけて最初のロックを外した後、どうすればいいのでしょうか。
http://www.gumball.com/how-drill-out-lock-on-gumball-machine.aspx
がそのサイトなのですが
Step #1 - Ensure that you your gumball / candy vending machine is in a stable and secure location for the drilling process. We want to avoid having the machine tipping over and possibly breaking the globe.
Step #2 (optional) - You will be drilling a hole down the center of the lock that is 1/4 inch deep. For each drill bit, use a ruler to measure 1/4 inch depth starting from the tip of the bit. Wrap a piece of tape marking off a 1/4 inch depth on the bit (see photo below). This tape will be your depth guide and will ensure that you don’t drill too deep into the lock causing damage to internal parts your gumball / candy vending machine.
Step #3 - Start with the small drill bit (1/8 inch or smaller), this makes the project go much faster, and bore a starter hole into the center of the lock. Drill approximately 1/4 inch deep (stop drilling when you reach the masking tape).
Step #4 - Finally, using the larger 1/4 drill bit, bore a second large hole through the initial hole, this will destroy the internal parts of the lock and will free it for removal. On your initial attempt try not drill beyond 1/4 inch depth. Thus will usually free up most locks. In some cases you may need to drill a little deeper (1/8 inch) to reach the black pin that holds the lock to the nut. Note: sSome locks are stubborn and you may need to insert a screwdriver into the drilled out lock and twist to remove the housing, needle nose pliers can also aid the process. Now you should have access to your gumball / candy vending machine.
とステップが書いてあるのですが1/8インチ程度の穴を軽くあけた後がりがりやると作業が早くできて1/4インチの穴があけられます。マスキングテープまで掘ったら止めてください。
という訳はわかったのですが、１/4インチの穴をあけた後の作業がわかりません。
それ以降(step4)の詳細を丁寧に日本語訳頂ければ幸いです。
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