​Shank: 1/4'' HEX(6.35mm) ​Material: Tungsten Carbide ​Length: 60mm(2-3/8inch) ​Working Depth: 15mm (9/16inch) ​ ​1. The perfect accessory for drilling consistent 35mm diameter holes for circular hinges in kitchen and cabinet doors. ​ ​2. Stop collar can be set 15mm deep for fast, accurate setting. ​ ​3. TCT (Tungsten Carbide Tipped) construction ensures maximum durability, long life performance and Fast cutting capability in abrasive materials. ​ ​4. 1/4'' Hex Quick Release shank compatible shank for fast swaps. Ideally suited for use in a pillar drill. ​ ​5. Designed for use on MDF and laminated chipboard materials. Cutting spurs scribe the outer edge to leave perfect clean holes. Not for use on natural timber.