{"product_id":"12-7mm-reduced-shank-hss-e-twist-drill-bits-guhring","title":"12.7mm-Reduced-Shank HSS-E Twist Drill Bits | Guhring","description":"\u003cp\u003eEngineered for heavy-duty industrial drilling applications where hole diameters exceed standard chuck capacities, Guhring 12.7mm-reduced-shank twist drill bits deliver exceptional torsional rigidity and rotational stability within standard 13mm capacity chucks. Manufactured from premium HSS-E cobalt-alloyed high-speed steel, these precision cutting tools maintain high red-hardness and edge sharpness under severe thermal stress. The specialized black-oxide surface treatment enhances lubricant retention, substantially lowering friction coefficients and preventing cold welding during deep-hole operations. Featuring a heavy-duty web construction and a high-efficiency helix angle, the physical geometry ensures rapid chip evacuation and prevents chip packing in deep bores. These drills are purpose-built to handle demanding materials across Australian workshops, making them the ideal choice for drilling AS\/NZS 3678 250 and 350 grade plate, high-tensile structural steels, and abrasive mild steel fabrication. The 118-degree split-point geometry reduces thrust requirements and eliminates tool wandering upon initial workpiece contact, ensuring flawless radial concentricity and precise positional accuracy during manual or stationary machining cycles.\u003c\/p\u003e","brand":"Guhring","offers":[{"title":"13.0mm","offer_id":51019715903655,"sku":"8908","price":62.0,"currency_code":"AUD","in_stock":true},{"title":"13.5mm","offer_id":51019715936423,"sku":"8908","price":62.0,"currency_code":"AUD","in_stock":true},{"title":"14.0mm","offer_id":51019715969191,"sku":"8908","price":60.0,"currency_code":"AUD","in_stock":true},{"title":"14.5mm","offer_id":51019766104231,"sku":"8908","price":65.0,"currency_code":"AUD","in_stock":true},{"title":"15.0mm","offer_id":51019771412647,"sku":"8908","price":65.0,"currency_code":"AUD","in_stock":true},{"title":"15.5mm","offer_id":51019774460071,"sku":"8908","price":67.0,"currency_code":"AUD","in_stock":true},{"title":"16.0mm","offer_id":51019777048743,"sku":"8908","price":67.0,"currency_code":"AUD","in_stock":true},{"title":"16.5mm","offer_id":51019779145895,"sku":"8908","price":70.0,"currency_code":"AUD","in_stock":true},{"title":"17.0mm","offer_id":51019783176359,"sku":"8908","price":74.0,"currency_code":"AUD","in_stock":true},{"title":"17.5mm","offer_id":51019784945831,"sku":"8908","price":75.0,"currency_code":"AUD","in_stock":true},{"title":"18.0mm","offer_id":51019788320935,"sku":"8908","price":76.0,"currency_code":"AUD","in_stock":true},{"title":"19.0mm","offer_id":51019793629351,"sku":"8908","price":80.0,"currency_code":"AUD","in_stock":true},{"title":"20.0mm","offer_id":51019796807847,"sku":"8908","price":88.0,"currency_code":"AUD","in_stock":true},{"title":"21.0mm","offer_id":51019798904999,"sku":"8908","price":102.0,"currency_code":"AUD","in_stock":true},{"title":"22.0mm","offer_id":51019800838311,"sku":"8908","price":102.0,"currency_code":"AUD","in_stock":true},{"title":"23.0mm","offer_id":51019802575015,"sku":"8908","price":118.0,"currency_code":"AUD","in_stock":true},{"title":"24.0mm","offer_id":51019804573863,"sku":"8908","price":122.0,"currency_code":"AUD","in_stock":true},{"title":"25.0mm","offer_id":51019804934311,"sku":"8908","price":128.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0321\/5651\/6411\/files\/IMG_PRO_LI_268.jpg?v=1785034255","url":"https:\/\/truetooling.com.au\/products\/12-7mm-reduced-shank-hss-e-twist-drill-bits-guhring","provider":"True Tooling","version":"1.0","type":"link"}