{"data":{"id":"01jn1mdk69hmvcce65w6pnb360","key":"bosch-3-piece-hss-step-drill-p01jn1mdk69hmvcce65w6pnb360","route":"https:\/\/www.ponito.com\/en-ch\/products\/bosch-3-piece-hss-step-drill-p01jn1mdk69hmvcce65w6pnb360","name":"3 Piece HSS Step Drill Bit Set","description":"The Bosch 3 Piece HSS Step Drill Bit Set is a versatile collection of stepped drill bits designed for smooth, burr-free drilling across multiple diameters without needing to change bits.  Each bit in the set features a split-point tip that allows for an easy, accurate start without pre-punching, making them particularly well-suited for work on thin materials including sheet steel, stainless steel, non-ferrous metals, and sheet plastic. The CNC ground spiral flute design optimises chip removal and reduces vibration, contributing to consistently clean, round holes.  Axial and radial relief grinding delivers high cutting performance and exceptional smoothness throughout the drilling process. The 3-flat shank prevents slipping in the chuck, while laser-marked diameter figures in both spiral flutes provide clear, durable readings during use. Each bit is manufactured from HSS (high-speed steel), offering extended service life when used with coolant.  The set covers a broad range of diameters \u2014 from 4mm through to 30mm across the three bits \u2014 making it a practical choice for electricians, fabricators, and contractors who regularly drill or enlarge holes in sheet materials.  Features and Benefits: \u2022 Three HSS step drill bits covering step diameter ranges of 4\u201312mm, 4\u201320mm, and 6\u201330mm \u2022 Split-point tip for easy starting without pre-punching \u2022 CNC ground spiral flute for optimised chip removal and reduced vibration \u2022 Axial and radial relief grinding for high cutting performance and smooth results \u2022 3-flat shank prevents slipping in the chuck of rotary drills and drivers \u2022 Laser-marked diameter figures in both spiral flutes for clear, durable identification \u2022 HSS construction offers long service life when used with coolant  Specifications: Version: HSS Total length: 66.5mm  70.5mm  93.5mm Shank diameter: 6mm  8mm  10mm Step height: 4mm (all bits) Step diameter range: 4\u201312mm  4\u201320mm  6\u201330mm Net weight: 0.365kg  Contents: HSS step drill bit: 4\u201312mm step diameter, 6mm shank diameter HSS step drill bit: 4\u201320mm step diameter, 8mm shank diameter HSS step drill bit: 6\u201330mm step diameter, 10mm shank diameter","image":"https:\/\/www.tooled-up.com\/artwork\/prodzoom\/2608587426_bo_pro_u_a_1_845290.jpg","images":[{"id":0,"src":"https:\/\/www.tooled-up.com\/artwork\/prodzoom\/2608587426_bo_pro_u_a_1_845290.jpg"},{"id":1,"src":"https:\/\/asset.conrad.com\/media10\/isa\/160267\/c1\/-\/de\/000494891PI00\/image?x=100&y=100&ex=100&ey=100&align=center&format=jpg"},{"id":2,"src":"https:\/\/www.office-partner.de\/articleImage\/get\/number\/n2008213448"},{"id":3,"src":"https:\/\/asset.re-in.de\/isa\/160267\/c1\/-\/de\/000494891PI00\/000494891PI00.jpg?y=500&x=500&align=center"}],"brand":{"id":"68e83d3a-ddab-4d15-b295-314928f925b0","name":"Bosch","image":"https:\/\/static.fnac-static.com\/multimedia\/Images\/16\/16\/8C\/2C\/2919446-1505-1505-1\/tsp20250907094105\/Perceuse-a-percuion-mallette-Bosch-Profeional-GSB-21-2-RCT-060119C700-1300-W-2-vitees.jpg","slug":"bosch","products_count":11033,"visits_count":0,"rating":{"value":4.8,"count":2350,"distribution":[225,54,13,0,3]},"core_categories":[{"id":"632","name":"Hardware","image":"https:\/\/asset.re-in.de\/isa\/160267\/c1\/-\/de\/539192_BB_00_LO\/539192_BB_00_LO.jpg?y=500&x=500&align=center","products_count":10000,"path":"632","visits_count":0,"href":"\/en-ch\/categories\/632","price_from":2},{"id":"899","name":"Motor Vehicle Parts","image":"https:\/\/media.pkwteile.de\/360_photos\/11792376\/h-preview.jpg?202412","products_count":10000,"path":"888>5613>899","visits_count":0,"href":"\/en-ch\/categories\/899","price_from":116},{"id":"2977","name":"Motor Vehicle Braking","image":"https:\/\/cdn.autodoc.de\/thumb?_id=1658508_101499&lng=de&typ=custom&cc=1","products_count":10000,"path":"888>5613>899>2977","visits_count":0,"href":"\/en-ch\/categories\/2977","price_from":1065},{"id":"1540","name":"Drill & Screwdriver Bits","image":"https:\/\/www.tooled-up.com\/artwork\/prodzoom\/wera_848_hss.jpg","products_count":10000,"path":"632>3650>3944>1540","visits_count":0,"href":"\/en-ch\/categories\/1540","price_from":45},{"id":"2727","name":"Motor Vehicle Fuel Systems","image":"https:\/\/cdn.autodoc.de\/uploads\/feeds\/atd\/9.png?202412","products_count":10000,"path":"888>5613>899>2727","visits_count":0,"href":"\/en-ch\/categories\/2727","price_from":205}]},"category":{"id":"drill-and-screwdriver-bits","name":"Drill & screwdriver bits","short_name":"Drill & screwdriver bits","image":null,"products_count":12899,"href":"\/en-ch\/categories\/drill-and-screwdriver-bits","has_children":false},"breadcrumbs":[{"id":"diy-garden","name":"DIY & Garden","short_name":"DIY","image":null,"products_count":476730,"href":"\/en-ch\/categories\/diy-garden","has_children":true},{"id":"tools","name":"Tools & Workshop","short_name":"Tools & Workshop","image":null,"products_count":146828,"href":"\/en-ch\/categories\/tools","has_children":true},{"id":"accessories-consumables","name":"Accessories & consumables","short_name":"Accessories & consumables","image":null,"products_count":48278,"href":"\/en-ch\/categories\/accessories-consumables","has_children":true},{"id":"drill-and-screwdriver-bits","name":"Drill & screwdriver bits","short_name":"Drill & screwdriver bits","image":null,"products_count":12899,"href":"\/en-ch\/categories\/drill-and-screwdriver-bits","has_children":false}],"rating":{"value":null,"count":0,"distribution":[]},"currency":"CHF","price":{"symbol":"CHF","currency":"CHF","amount":9090,"offers":5}}}