INGCO 7-Pcs High-Grade HSS 4341 Metal Twist Drill Bit Set (2mm – 6mm)
Stop burning through cheap bits when drilling into metal. The INGCO AKD1075 7-Piece Twist Drill Bit Set brings industrial-grade metallurgy to your drilling machine. Crafted from premium HSS 4341 alloy steel, these bits are engineered to withstand high friction and intense heat without losing their cutting edge, allowing you to slice cleanly through mild steel, aluminum, brass, copper, and tough wood panels.
Industrial HSS 4341 Metallurgy & Engineering
Premium HSS 4341 Alloy Composition: Forged from high-performance structural High-Speed Steel (4341 grade), containing specialized tungsten and molybdenum content. This gives the bits exceptional red-hardness, allowing them to remain sharp even under high-RPM friction heat.
Precision-Ground 118° Standard Point: The tip of each bit features a precision-machined cutting angle designed to bite into metal surfaces rapidly, ensuring efficient chip clearance and clean, burr-free entry holes.
High-Efficiency Flute Profile: Engineered with a deep, polished spiral flute geometry that ejects metal shavings and wooden sawdust out of the hole instantly, preventing the bits from binding, overheating, or jamming.
Smart Size Assortment & Storage
Doubled Precision Base Sizes: The kit includes duplicate pieces of the finest sizes (2x 2.0mm and 2x 3.0mm) because thin micro-bits face the highest risk of accidental twisting or breaking on busy job sites.
Shatterproof Plastic Storage Box: Comes housed inside a compact, impact-resistant plastic case with clearly labeled size slots. This keeps your bits perfectly organized, rust-free, and prevents them from rolling around loose in your heavy tool bag.
Complete Set Size Configurations:
7 Pieces Total: 2.0mm, 2.0mm, 3.0mm, 3.0mm, 4.0mm, 5.0mm, and 6.0mm.
Universal Round Shank: Designed to fit perfectly into standard 10mm (3/8″) and 13mm (1/2″) keyed or keyless drill chucks across all corded and cordless drill machines.
Best Use Cases
Metal Fabrication & Engineering: The absolute go-to kit for drilling clean rivet holes, pilot holes for screws, and bolt points in mild steel plates, iron channels, aluminum frames, and brass brackets.
Electrical Panel Layouts: Perfect for commercial electricians drilling mounting holes into thin sheet metal enclosures, control panels, and PVC junction boxes.
Carpentry & Modular Cabinetry: Ideal for furniture makers boring precise pilot screw holes into dense hardwoods, MDF, laminates, and acrylic templates to prevent the material from splitting.
TK Pro Tip: When drilling through tough metals like mild steel or iron, speed and lubrication are everything! High speeds generate extreme friction heat that will instantly dull the tip of any drill bit. Instead, set your drill machine to a lower speed setting, apply firm, steady downward pressure, and add a few drops of cutting oil or machine oil directly onto the drilling point. This keeps the HSS 4341 steel cool and allows it to effortlessly cut smooth ribbon shavings for years!
The TK Tools Promise
Verified: 100% original INGCO power tool accessories—sourced directly and verified for authentic HSS 4341 structural grading.
Straightness & Tip Checked: Our warehouse technical team manually run-tests a sample from every batch, inspecting the spiral flute alignment and tip sharpness before approving the set for shipment to ensure zero bit wobble.
Fast Delivery: Dispatched safely and quickly packed with protective cushioning from our central hub in Salem straight to your workshop or factory counter.
Reviews
There are no reviews yet.