The Bordo 4.5 x 0.75 mm MC Bottoming HSS Tap is part of Bordo’s professional High Speed Steel tapping range, engineered for precision internal thread finishing and completion in workshop, fabrication and maintenance applications. This bottoming tap is ideal for tradespeople and technicians needing full thread depth in blind holes with minimal thread run-out.
Manufactured from premium High Speed Steel (HSS), this tap features a Metric Coarse (MC) 60° thread form with a flat crest and root clearance, promoting strong engagement between internal and external threads while enhancing thread strength with a larger root radius and lower thread height. Bottoming taps have a shortened lead (typically two threads) that enables tapping right to the bottom of a blind hole after initial thread starting with a taper or intermediate tap. Designed for hand and general machine use in medium tensile materials, this tap offers dependable performance across a range of general-purpose threading tasks.
Bordo has a longstanding reputation for quality industrial threading tools backed by robust manufacturing standards. Industrial Shed ensures fast access to these trusted trade-grade taps when you need them on site or in the workshop.
Product Type: Bottoming Tap (Thread Cutting Tool)
Brand: Bordo
Thread Size: 4.5 x 0.75 mm (Metric Coarse)
Thread Form: Metric Coarse (60°)
Material / Finish: High Speed Steel (HSS)
Lead Type: Bottoming (lead of 2 threads)
Drill Size: 3.8 mm Pilot Hole
Overall Length: 53 mm
Series: HSS Metric Bottoming Tap
Part Number: 3020-4.50B
Application: Finishing internal M4.5 coarse threads to the bottom of blind holes
► Key Features
‣ Precision 4.5 mm diameter with 0.75 mm pitch for metric coarse threads
‣ High Speed Steel construction for durability and wear resistance
‣ Bottoming lead design (2 threads) for minimal thread run-out in blind holes
‣ 60° thread form with flat crest and root clearance for strong engagement
‣ Suitable for hand and general machine tapping
► Why Tradies and Contractors Buy This
‣ Ensures full thread depth in blind hole applications
‣ Durable HSS construction for everyday trade use
‣ Enhances thread strength with larger root radius and lower thread height
‣ Versatile tool suitable for workshop and on-site jobs
‣ Backed by Industrial Shed’s fast dispatch and trade-focused support
► Stock won’t last — get yours now at Industrial Shed!
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