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Head Length: 1-5/16"
Step drills have single radial concave flutes to create a perfectly round hole in metal
Choose the Drill America - 1/16-64 UNS HSS Bottoming Tap for unmatched reliability and performance
Drill America - 3/8-60 UNS HSS Tap Set
5/16"-24 x 6" HSS Spiral Point Tap - High Performance & Durable Cutting Tool | Drill America Repair Kits Head Length: 1-5/16"Spiral Pointed taps are also called machine taps solve the problem of tap breakage in through hole tapping. Spiral point prevents tap breakage in through hole tapping and shoots chips ahead of the cutting action reducing loading and clogging in the flutes. They are recommended for use in through or blind holes which allow for chip accumulation in the bottom of the hole Ideal for threading a wide variety of ductile materials, copper and copper alloys,