FACOM HSS Spiral Fluted Step 4mm - 20mm 229A.ST1
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Facom HSS Spiral Fluted Step Drill Bit 229A.ST1 | £65.95 |  | |||
Facom HSS Spiral Fluted Step Drill Bit 4mm - 20mm 229A.ST1 | £65.95 | | |||
| £65.95 |  | ||||
This versatile 9-step configuration covers diameters from 4mm to 20mm in 2mm increments, making it the ideal choice for general metalworking, electrical enclosures, and plumbing applications. The 75mm overall length provides an excellent balance between control and reach, whilst the 65g weight offers substantial rigidity for accurate drilling without excessive bulk. Designed for high accuracy drilling in sheet materials up to 3mm thick, this step drill bit efficiently creates holes for cable glands, pipework penetrations, and mounting hardware. The 2mm step increments provide commonly-used hole sizes whilst maintaining strong step edges for clean cutting performance. Features and Benefits: • HSS steel construction ensures durability in demanding applications • Spiral fluted design for superior chip evacuation • Cylindrical shank with 3 flats for positive drive engagement and micro-slip prevention • Laser-marked diameter graduations in protective groove • Progressive step design eliminates multiple bit changes Specifications: Steps [mm]: 4 - 6 - 8 - 10 - 12 - 14 - 16 - 18 - 20 Overall Length: 75mm Weight: 65g
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