KooingTech 6 PCS Square Drill Bit, Mortice Chisel Mortice Drill Attachment for Woodworking Mortise Chisel (6.35mm,8mm,9.5mm,12.7mm,14mm,16mm)

• SQUARE DRILL BIT SPECS: 19mm/0.7" support diameter with 200mm/7.8" corebit length. Six sizes range from 6.4mm to 16mm (0.25-0.63")
• HEAT-TREATED MORTICE CHISEL: Made from steel with HRC48-50 hardness rating. Extended design ensures 0.03mm concentricity tolerance
• SQUARE HOLE PUNCHING: Creates clean mortises for door latches/hardware. Processes wood up to thick with continuous chip ejection
• AUGER BIT SET CONFIGURATION: 6-piece kit covers 6.4-16mm (1/4"-5/8") applications. Ideal for construction crews and furniture workshops needing multi-size solutions
• MORTISE MACHINE COMPATIBILITY: The square hole punching needs to use electric drill, hammer & other tools

Features: 1. This saw drill bit is made of special steel, heat treatment, HRC48-50, offers high hardness and high concentricity. 2. Professional drill bit, suitable for construction, installation, renovation, decoration industry, etc. 3. It will get double effect by matched use with mortise and tenon machine, the square hole punching needs to use electric drill, hammer other tools. 4. 6 pieces a pack with different slot diameter to meet your needs. 5. Great accessory for mortising, chisel, and woodworking. Specifications: Material: Steel Hardness: HRC 48-50 Color: Silver Quantity: 6Pcs Support Diameter: Approx. 19mm / 0.7inch Corebit Length: Approx. 200mm / 7.8inch ModelSlot DiameterWeight 0011/4inch (6.4mm)106g 0025/16inch (8mm)131g 0033/8inch (9.5mm)154g 0041/2inch (12.7mm)195g 0059/16inch (14mm)214g 0065/8inch (16mm)222gWeight: Approx. 1215g Package Included: 6 x Saw Drills