{"product_id":"irwin-irw10502585-hss-pro-tin-coated-drill-bit-4-5mm","title":"IrWIN IRW10502585 HSS Pro Tin Coated Drill Bit 4.5mm","description":"\u003cp\u003eThe Irwin HSS Pro TiN drill bits are primarily designed for drilling metal and harder, tougher alloys. Compared to traditional HSS twist drill bits, speed can be increased by 40 -60% and feed by 10 -20% without reducing the life time of the drill bit significantly.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eTiN is also a poor conductor of heat, so the heat generated during the drilling process is diverted into the chips and coolant and less into the drill bit.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThese drills have a 135° split point grinding tip which ensures perfect centring and reduced drilling pressure.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThe drill bit body is manufactured from high quality HSS steel coated with 2.5µ Titanium Nitride (TiN), the TiN coating has a hardness of app. 80 HRC and is very resistant to wear. TiN has a low coefficient of friction, this results in less power being consumed and less heat generated during the drilling.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThe Irwin IRW10502585 HSS Pro TiN Coated Drill Bit comes in the following: Size: 4.5 x 80mm\u003c\/p\u003e\u003cbr\u003e","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":59893668577625,"sku":"512335M","price":3.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1042\/3812\/1305\/files\/original-45_c465da04-c7c1-4b4e-905a-6c2e857d14ec.jpg?v=1791999515","url":"https:\/\/sbtoolsuk.com\/products\/irwin-irw10502585-hss-pro-tin-coated-drill-bit-4-5mm","provider":"SB Tools","version":"1.0","type":"link"}