Metal drill bit
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HSS-CO Twist drill bit set for steel and stainless steel, 19-piece
€32.38
Metal drill bits for steel, stainless steel and aluminium
A metal drill bit cuts; it does not hammer. The cutting edge on the drill bit head removes a chip, which is why the cutting material, the grind and the rotational speed are more important than force. Our metal drill bits are twist drill bits made from HSS and HSS-Co for steel, stainless steel, aluminium and plastic, as well as HSS hole saws with a Weldon shank for Magnetic drill presses. Acrylic and Plexiglas require drill bits with a different cutting edge; we do not stock these.
Twist drill bit, stainless steel drill bit or core drill: which drill bit for which job
| Drill bits | Diameter | For | Machine |
|---|---|---|---|
| HSStwist drill bit | 5 / 6 / 8 / 10 mm, sold individually | Steel, metal, plastic, wood | Drill, cordless screwdriver |
| HSS-Co and titaniumstainless steel drill bits | 1 to 10 mm in a 19-piece set | Stainless steel, steel, cast steel, cast iron | Drill, pillar drill |
| HSS hole saws, Weldon 19 | 12 to 50 mm | Steel, beams, sheet metal from 30 mm cutting depth | Magnetic drill |
The twist drill bit in the drill chuck drills up to 13 mm. For larger diameters and when drilling multiple holes in steel beams, the core drill is faster: it cuts only the ring, requires a fraction of the force and ejects the core.
HSS, HSS-G and HSS-Co: the differences
HSS is high-speed steel, the base material for all metal drill bits. HSS-R is roll-forged and inexpensive, whilst HSS-G is ground from solid stock and runs more smoothly with a sharper cutting edge; this is the standard for steel. HSS-Co, also known as HSS-E, contains 5 or 8 per cent cobalt in the alloy and remains hard under the heat generated by stainless steel and high-strength steel. A titanium coating reduces friction and further extends tool life. Our individual drill bits are HSS 6542; the set is HSS-Co 5 per cent with titanium.
Metal drill bit sets for workshops and assembly
The 19-piece set, ranging from 1 to 10 mm in 0.5 mm increments, covers centre holes and through holes for standard threads. The 7-piece centre drill set, ranging from 12 to 22 mm, drills screw holes for M12, M16 and M20 in steel construction. Both are available in a case or a cassette.
Why choose metal drill bits from Kernlochbohrer.com
Our metal drill bits complement Magnetic drills and core drilling rigs by providing what is otherwise missing on the building site: drill bits for steel beams, brackets and railings. Over 5,000 professionals trust us; we are Trusted Shops certified. We’ll advise you on which drill bit to use for which type of steel over the phone, by email or via WhatsApp.
Get in touch with us
Do you have any questions or would you like some professional advice? You can contact us in person, by telephone, by email or via WhatsApp.
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