Noga Product Change Description: Countersink Farnell Code: 1775908 Linear Code: NG 3100 Handle: NG-3: Accepts all Blade Holders Soft Grip ergonomic 2 piece, Acetyl and rubber Removable end cap for blade storage Size 125mm long x 28mm max. diameter. Holder: C Type Accepts Countersink Heads C12, C20 & C30 Locking ratchet stop system extends 25-115mm Useful for chamfering deep holes Blade: C20 Countersink: 3 - 20mm diameter x 90 degrees Blades available for this tool Farnell Code 137-4055 137-4056 137-4057 Manufacturers Code C12 C20 C30 Countersink Angle 90 degrees 90 degrees 90 degrees Countersink Diameter Range 1-12mm 3-20mm 3-30mm