Use

• Used for the edge finishing work of timber, plasterboard, plastics, and metal

Use

• For restoration of the collapsing screw thread
• Eight kinds of pitch for each pcs
• also used as pitch gauge two specifications used for inch and millimeter metric screw respectively
• Other specifications can also be produced

Use

• 0.5 mm thickness so that it can be used for finishing work of the slit-shaped groove

Use

• Removal of unwanted part for plastics, & metal etc.
• Two type for right-hand use and left-hand use

Use

• For truing the reground edge of drill, bit, cutter, kitchen knife, and scissors etc.
• For truing super-hard metal tools, glass, ceramics etc.

Use

• As simple experimental tools for hardness between HRC40 ～ 65
• Pocketable; convenient to use while there's no place to hang up for the experimental equipments like large-scale tools, outdoor special steels and etc.
• Before cutting, carring a set of the files could be effectively used for material hardness test, qualified hardness test after heat treatment and others.

Use

• Six pieces a set, hardness is differentiated by handle colors.
• Non-slip handle, easy to use.
• Using of directions: remove the rust blemish on materials before use; punctured by detector and then scratch; if the material is damaged, the hardness should be lower than detector's indication.
• If there's no damage, use the detector above grade one; As the front of detector has taken a bending processing, the hardness test is applicable for flat surface, curving surface and inner-edge surface.