COBALT TiAlN Coated Spiral Flute Step Drill | Bordo Size:12x1mm so blades for these materials

so blades for these materials have a much harder metal bond to resist this abrasion

Title Qty 2674-25 25mm Self Feeding Wood Bit 1 2674-29 29mm Self Feeding Wood Bit 1 2674-32 32mm Self Feeding Wood Bit 1 2674-35 35mm Self Feeding Wood Bit 1 2674-38 38mm Self Feeding Wood Bit 1 2674-44 44mm Self Feeding Wood Bit 1 2674-51 51mm Self Feeding Wood Bit 1 2674-54 54mm Self Feeding Wood Bit 1 2674-57 57mm Self Feeding Wood Bit 1 2674-TIP1 Self Feeding Wood Bit Replaceable Screw Tip 5 5750-38716X300 3/8 - 7/16" Hex x 300mm Quick Change Extension adaptor 1

plasterboard

Diamond blades do not cut

COBALT TiAlN Coated Spiral Flute Step Drill | Bordo Size:12x1mm so blades for these materialsHSS Co5 SPIRAL FLUTE TiAlN COATED STEP DRILLS Bordo Cobalt Spiral Flute Titanium Aluminium Nitride (TiAlN) coated step drills offer unparalleled performance when drilling hard metals such as stainless steel. HSS Co5 material provides increased performance and tool life when machining tough steels. High performance point for faster starting and reduced bit wander. 3 flatted shank prevents slipping in drill chuck. Spiral flutes enable easier tool