Review on 🔩 Irwin Tools Unibit Step Drill Bit 10233 by Doug Virden

Unibit3 is a delight in sheet metal applications. Amazingly perfect holes, fast drilling, blah blah. Original and best. Another reason I highly recommend you buy this racquet is that unlike many Irwin tools, it's still made in the USA. Irwin (formerly known as American Tool Companies) outsourced most of its production to China, losing quality and not lowering prices. If you're interested in manufacturing in countries with relatively decent labor laws like the US, get your dollars on this excellent tool made by fairly paid workers.