Checking for enfeebled tools during a drill bushing application is oftentimes difficult because the tip stays inside the bushing when the drill is at abiding-place position.

Checking for enfeebled tools during a drill bushing application is oftentimes difficult because the tip stays inside the bushing when the drill is at abiding-place position. Because of this, conventional wand or whisker tool sensors cannot touch the tip. However, A + P research Inc., Ann Arbor, Mich., appears to have solved the question introducing what it claims is the world's first non-contact separated tool monitor designed specially for drill bushing applications.

Called Bits, the tool sensing order uses a MagicEye sensor that go ups at the exit side of a drill bushing. This sensor switches its

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