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Are these wood-boring, or metal-boring drill bits? Does it matter? Picked these up at an estate sale years ago and there isn't much info beyond "Made in Austria." : r/Tools
6/8/9/12/16/19mm Hss Countersink Boring Drill Bit Set for Wood Metal Quick Change Tool Hex Chamfer Drill Tool Set - AliExpress
Amazon.com: YUENTOEN 6Pcs Titanium Coated HSS Twist Drill Bits, 3-8mm Serrated Side Cutting Drill Bit, Serrated Twist Drill Bits for Woodworking Wood Metal Plastic : Tools & Home Improvement
5pc 82° 5 Flute Cobalt Sharp Countersink Drill Bit Metal Wood Chamfer Boring Set | eBay
Ladder Metal Boring HSS Tower Drill Bits - China Step Drill Bits, Metal Drill Bits | Made-in-China.com
uxcell Forstner Wood Boring Drill Bit 90mm Dia. Hole Saw Carbide Alloy Steel Tip Round Shank Cutting Tool for Plywood Wood - Amazon.com
Amazon.com: Titanium Coated HSS Twist Drill Bits - 6pcs 3-8mm Serrated Grooving Cutting Carpenter Side Cutting Tap Spiral Saw Drill Bit Woodworking Wood Metal Plastic Hole Holesaw Tool : Tools & Home
PUIYRBS Steel Drill Bits for Hard Metal Cutting Carpenter Side Cutting Tap Spiral Saw Drill Bit Woodworking Hole Tool - Walmart.com
Mitchell Golf Drill Bit 8.6mm For Metal Woods (For Drilling .335 Dia.) - Mitchell Golf Equipment Company