Step

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1.PVC 2 gang surface pattress box for conduit adaptor and trunking ..
This box is made from a soft plastic and can be drilled.
2.Titanium Coated Step Drill bit
Create accurate holes or enlarge existing holes in metals up to 10mm thick with this step drill bit. Suitable for use with steel, non-ferrous metals and hard plastics, the drill has clearly-marked 2mm graduations from 4-32mm.
A precision ground, multi-flute cutting edge delivers burr-free holes, while a self-centring point eliminates the need to pre-punch. The bit’s TiN coating gives it extra wear resistance, making it a firm favourite among trade professionals.

• High-quality M2 HSS step drill bits for professional use
• For drilling steel, non-ferrous metals and hard plastics
• Create accurate holes or enlarge holes in metals up to 10mm thick
• 10 steps – 4, 6, 8, 10, 12, 14, 16, 18, 20, 22,24-32mm
• Precision ground, multi-flute cutting edge for burr-free holes
• Self-centring point – no need to pre-punch
• Titanium nitride-coated for extra wear resistance
• Ideal for drilling sheet metal or enlarging existing holes
• Cylindrical shank for use in three-jaw drill chuck rotary drills
• Not suitable for use on hammer action