CounterSink Sets

* This hole type countersink bit 4pc set * Manufactured from quality HSS-M2 for durability and long service life * Bit ranges are: 2-5mm 5-10mm 10-15mm 15-20mm * Suitable for countersinking or deburring * Angle is 90 degree Choosing the Right Countersink How to Choose The Right Size Countersink by Diameter A simple rule of thumb is to choose a countersink which is 50% larger than the diameter of the hole Countersink diameter = 1.5 x bolt size (hole) diameter Ex: For a 1/4-20 bolt, multiply the diameter (.250) x 1.5 = .375. This equates to a 3/8” countersink How to Choose The Right Size Countersink by Angle Angle is based on the screw or bolt type being used 82º is most common

* Small three flute set of counter sink bits * Comes with wooden box for safe storage * Manufactured from quality HSS-M2 for durability and long service life * Sizes include: 4.3, 5.3, 6.3, 8.0, 10.0, 12.4mm Choosing the Right Countersink How to Choose The Right Size Countersink by Diameter A simple rule of thumb is to choose a countersink which is 50% larger than the diameter of the hole Countersink diameter = 1.5 x bolt size (hole) diameter Ex: For a 1/4-20 bolt, multiply the diameter (.250) x 1.5 = .375. This equates to a 3/8” countersink How to Choose The Right Size Countersink by Angle Angle is based on the screw or bolt type being used 82º is most common

* This zero hole type countersink bit 5pc set * Manufactured from quality HSS-M2 for durability and long service life * Bit ranges are: 6.5mm to 28.0mm * Suitable for countersinking or deburring * Angle is 90 degree