Caution To improve its performance, the FineBeam drill head has undergone design changes. The new drill head has a guide pad protector, as shown below, that protects the guide pad from being damaged when retrieving the drill from the hole into the guide bushing after completing machining. Accordingly, the insert clamping screw design for drill head diameters of 30 mm or greater has also been changed. See the list below for details. When ordering insert clamping screws, below before choosing the screw size, first confirm the drill body design according to the procedure shown. If the drill head has the protector : Use a screw in the new design If the drill head has NO protector: Use a screw in the previous design New design Conventional design With guide pad protector Without guide pad protector Guide pad protector Tool diameter Peripheral insert Intermediate insert Central insert DCN - DCX Screw Screw Screw (mm) New Conventional New Conventional New Conventional 25.00-28.00 CSTB-2.2 CSTB-2.2 CSTB-2.2 CSTB-2.2 CSTB-2.2 CSTB-2.2 28.01-29.99 CSTB-2.2 CSTB-2.2 CSTB-2.2 CSTB-2.2 CSTB-2.2 CSTB-2.2 30.00-35.00 SR14-560-HG CSTB2.5 SR14-560-HG CSTB2.5 SR14-560-HG CSTB2.5 35.01-38.00 SR14-560-HG CSTB2.5 SR14-560-HG CSTB2.5 SR14-560-HG CSTB2.5 38.01-39.00 SR14-560-HG CSTB2.5 SR14-560-HG CSTB2.5 SR14-560-HG CSTB2.5 39.01-41.00 SR14-560-HG CSTB2.5 SR14-560-HG CSTB2.5 SR14-560-HG CSTB2.5 41.01-44.00 SR14-560-HG CSTB2.5 SR14-560-HG CSTB2.5 SR14-560-HG CSTB2.5 44.01-45.00 SR14-560-HG CSTB2.5 SR14-560-HG CSTB2.5 SR14-560-HG CSTB2.5 45.01-47.00 SR14-560-HG CSTB2.5 SR14-560-HG CSTB2.5 SR14-560-HG CSTB2.5 47.01-51.00 SR14-560-HG CSTB2.5 SR14-560-HG CSTB2.5 SR14-560-HG CSTB2.5 51.01-54.00 SR14-560-HG CSTB2.5 SR14-560-HG CSTB2.5 SR14-560-HG CSTB2.5 54.01-57.00 SR14-560-HG CSTB2.5 SR14-560-HG CSTB2.5 SR14-560-HG CSTB2.5 57.01-60.00 SR14-560-HG CSTB2.5 SR14-560-HG CSTB2.5 SR14-560-HG CSTB2.5 60.01-64.00 SR14-560-HG CSTB2.5 SR14-560-HG CSTB2.5 SR14-560-HG CSTB2.5 64.01-65.00 SR14-560-HG CSTB2.5 SR14-560-HG CSTB2.5 SR14-560-HG CSTB2.5 The two types of screws are not interchangeable. A wrong screw will not fit the drill head body. Please contact your dealer for further information. 028 www.tungaloy.com