Detail of 4Pcs Diamond Rod 6mm Shell Grinding Burrs Bits and 1Pcs Quartz Tester Machine Watch Battery Capacity Detection Tool4pcs 6mm Diameter Grinding Heads and 1Pcs Quartz Tester Machine Watch Tool (Without Battery)With Head-Resistant Coating of Excellent Diamond Particles for Carving,Etching, Grinding, Grinding, etc. Ideal for glass, metal, stone, tile, ceramics and other jewelersIdeal for hobbies, crafts, modellers and other professionalsItem Type: tools and repair kitsType: toolsModel: motion Battery testerApplication range: household, motion tester, electronic meterOverall length: about 60mm / 2.36 inchShank diameter: about 6mm / 0.24 inchBurr head length: about 20mm / 0.79 inchBurr head diameter: 6/8/10 10mmShape: needle tipBattery: 5AA (without Color: Red + White & Silver Material: Plastic & Tool Steel Quartz Watch Tool Size: 18.8x3.1x8cm Package Contents: 4x6mm Diameter Grinding Heads1 x Quartz Machine Testing Tool (Without Battery)Note: It is suitable for water cooling when using it, it is not allowed to be installed and it can not be used too much forceOnly the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement error is +/- 1-3cm.