Diameter first, material second: the hole gives the size, and what is being drilled picks the bit's metal, HSS for steel, cobalt for stainless, SDS or masonry for stone, wood forms for joinery.
Hardness where it counts: cobalt alloyed HSS holds its edge in stainless and hard steels that blunt plain HSS, the step up when the drill squeals and polishes instead of cutting.
With an SDS hammer drill: the shank locks into the hammer action for concrete and masonry, over 400 lines by diameter and length, while plain masonry bits serve rotary machines.
Longer life in general work: the gold titanium nitride coating runs cooler and resists wear, stretching HSS through production drilling.
Diamond cores: the stepped diameters with their arbors and extensions cut clean large holes through brick and block, the trade's answer above ordinary bit sizes.
The graded cases, metric HSS, masonry and combined, cover the everyday spread so the size is always in the box, with single bits replacing the ones the work consumes.
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The deepest consumable shelf on the whole site, 1,700 drill bits, runs on just two questions asked in order: what diameter does the hole need, and what material is being drilled, because the second question is what picks the bit's own metal and coating.
The metal drilling families lead. HSS is the standard for steel and general work, more than 500 lines strong on this shelf, with the gold titanium nitride coated forms running cooler and lasting longer through production work, and cobalt bits stepping up for the stainless and hard steels that eat plain HSS for breakfast. The masonry side answers stone and concrete directly, SDS shanked bits for the hammer drills that own that work, over 400 lines deep by diameter and length, and plain masonry bits for the rotary machines beside them, with the diamond core bits in stepped diameters, their arbors and 200 millimetre extensions, cutting the large clean holes that brick and block work demands.
Wood and sheet keep their own dedicated forms, flat wood bits for fast joinery holes, TCT tipped bits where the cutting edge must stay sharp through abrasive board, and the finishing tail of the shelf runs step drills for clean holes in thin sheet, countersinks that seat screw heads flush, and hex shanked bits that lock straight into impact drivers.
The sets stock the toolbox, the fifteen piece metric HSS and masonry cases and the combined seventeen piece set among them, and diameter with material typed into search cuts seventeen hundred lines down to a pick. A worn bit or an odd shank photographed over WhatsApp on 07754288583 comes back named with its family and the drilling-speed habit noted.
Diameter first, material second: the hole gives the size, and what is being drilled picks the bit's metal, HSS for steel, cobalt for stainless, SDS or masonry for stone, wood forms for joinery.
Hardness where it counts: cobalt alloyed HSS holds its edge in stainless and hard steels that blunt plain HSS, the step up when the drill squeals and polishes instead of cutting.
With an SDS hammer drill: the shank locks into the hammer action for concrete and masonry, over 400 lines by diameter and length, while plain masonry bits serve rotary machines.
Longer life in general work: the gold titanium nitride coating runs cooler and resists wear, stretching HSS through production drilling.
Diamond cores: the stepped diameters with their arbors and extensions cut clean large holes through brick and block, the trade's answer above ordinary bit sizes.
The graded cases, metric HSS, masonry and combined, cover the everyday spread so the size is always in the box, with single bits replacing the ones the work consumes.
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