Frequently asked questions about the Drills, cutting discs, grinding paper, brushes category
What are Drills, cutting discs, grinding paper, brushes and what tasks are they for?
Drills, cutting discs, grinding paper, brushes are consumable tools for drilling, cutting, grinding and surface cleaning: HELLER and SPECIALIST drill bits for wood and concrete, TAMO diamond cutting discs for stone, 114×102 abrasive paper and wire/nylon brushes for finishing and surface prep.
Which drill bit to choose for wood: HELLER Allmat or SPECIALIST Long HSS?
For general wood drilling choose HELLER Allmat (e.g. 8×200 mm) for clean holes; for deeper holes and greater durability pick SPECIALIST Long HSS (e.g. 3.0×63/100 mm or longer 115/175 mm options). Match diameter and working length to your drill and project.
Which discs are suitable for cutting stone and porcelain tile?
Use diamond segment cutting discs such as TAMO 400×25.4/22.2 mm segment or RAPTOR D122×22.2 mm for stone and porcelain. Check the bore diameter (22.2 mm or 25.4 mm) to ensure compatibility with your saw or angle grinder.
How to choose a cut-off wheel for metal: 125×1.6×22 or 125×16×12.7 mm?
A thin 125×1.6×22 mm wheel is best for clean cuts and minimal material loss on thin metal. A thicker 125×16×12.7 mm wheel is for heavier-duty, rougher cutting and longer life; always check the arbor bore (22.2 mm vs 12.7 mm) for your grinder.
Which abrasive paper is needed for finishing — 114×102 K320 or K80?
For finishing use K320 (e.g. 114×102 K320) to remove fine marks and achieve a smooth surface. K80 is coarse and intended for heavy stock removal before finishing.
Which brushes are better for rust removal — wire or nylon?
For heavy rust removal use wire brushes (steel or brass). Nylon brushes are for gentler cleaning, paint removal and polishing without scratching the metal.
Which SDS+ drill bits fit a rotary hammer and how to choose length 50/110 or 100/160 mm?
HELLER SDS+ bits (e.g. 10×50/110 or 14×100/160 mm) fit SDS+ chucks. Choose shorter working length (50 mm) for shallow holes and longer (110–160 mm) for through-holes or deep drilling in concrete.
What is better for tiles: diamond drill or carbide (tungsten) drill?
Diamond drills (e.g. TEEMANTPUUR SPECIALIST) are best for tiles and porcelain for clean, chip-free holes. Carbide bits suit softer materials and wood but risk chipping when used on tiles.
How to choose the disc bore diameter — 22.2 mm or 25.4 mm?
Match the disc bore to your tool: many angle grinders use 22.2 mm, while some saws and larger wheels use 25.4 mm. Check product specs — e.g. TAMO 400×25.4/22.2 mm lists both bore options.
Do MAKITA or HELLER drill bit sets fit my drill and which set is best for home use?
MAKITA and HELLER sets (4–33 pcs) include a range of diameters and types; for home use choose a set combining wood, metal and concrete bits (HSS and SDS+). Small HELLER SDS+ 4–5 piece kits or MAKITA multi-bit sets are practical and versatile for DIY tasks.