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The Irwin Vise Grip 10234CB Unibit #4 Cobalt Step Drill Bit replaces 12 individual bits in one tool, drilling holes from 3/16" to 7/8" in 1/16" increments through stainless steel, sheet metal, aluminum, fiberglass, plastics, plexiglass, and wood. Cobalt high speed steel construction extends cutting-edge life for demanding applications, while the SpeedPoint tip penetrates fast without requiring a pilot hole.
Each step produces true, round holes with a smooth, clean finish, reducing the need for secondary deburring. The 3/8" hex shank ensures a secure, wobble-free grip in standard chucks and quick-change systems, making this bit a versatile choice for HVAC, electrical, and fabrication work.
1 days
The Irwin Unibit #4 step drill bit features 12 steps ranging from 3/16" to 7/8" in 1/16" increments, letting you drill multiple hole sizes in thin materials without swapping bits. Each smaller step...
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20 8 HOLE SIZES (9/16"-1") UNIBIT STEP DRILL
The Irwin Vise Grip Unibit 2T Step Drill Bit (Model 15102ZR) drills clean, precise holes ranging from 3/16" to 1/2" in a single step, making it ideal for sheet metal, plastic, and thin materials...
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