Malco ub20 Step Drill Bit 9/16 Inches to 1 Inches

Product Description

The Malco UB20 is a professional-grade step drill bit designed for tradespeople who need clean, accurate holes in sheet metal, steel, and other thin materials. Step drill bits like the UB20 are a go-to tool for HVAC technicians, electricians, plumbers, and sheet metal workers. They allow a single bit to drill multiple hole sizes without swapping tools, saving time on the job site. The Malco UB20 steps up from 9/16 inches to 1 inches, giving you a range of hole sizes in one compact bit. It requires a 1/2 inches pilot hole to get started, which helps center the bit and keeps the cut precise. The stepped design means each pass removes material gradually. This reduces heat buildup, lowers the chance of bit walking, and produces cleaner hole edges compared to standard twist bits. HVAC installers use step bits like the UB20 when punching knockout holes in electrical panels, ductwork flanges, and metal enclosures. Electricians rely on them for conduit entry holes in junction boxes and panels. Plumbers use them for pipe and fitting clearance holes in thin metal framing. The UB20 is built to handle the repetitive demands of trade work. It is sold individually and comes in original Malco factory packaging, making it a straightforward replacement or addition to any professional tool kit. Malco Tools is a well-known manufacturer of HVAC and sheet metal hand tools, and the UB20 fits within their line of precision cutting and drilling accessories. If you work in sheet metal fabrication, mechanical contracting, or electrical installation, the UB20 delivers dependable performance across a wide range of hole sizes.

• Steps from 9/16 inches to 1 inches, covering multiple hole sizes with a single bit
• Requires a 1/2 inches pilot hole for accurate, centered starts on thin metal and sheet stock
• Designed for HVAC, electrical, and plumbing trade applications including panels, ductwork, and metal framing

Product Highlights

The Malco UB20 step drill bit gives trade professionals a reliable, multi-size drilling solution for sheet metal and thin steel work. Its stepped cutting design delivers clean holes from 9/16 inches to 1 inches with a single tool.

Product Information

Standard Information

• Brand: MALCO
• Manufacturer Part Number: UB20

Technical Specifications

• Type: Drill Bit
• Sub Type: Step Bit
• Size Range: 9/16 inches to 1 inches
• Required Pilot Hole: 1/2 inches
• Pack Size: 1 each