6.4/8/9.5/12.7mm Square Hole Mortiser Drill Bit Mortising Chisel Auger HSS Twist Drill Woodworking Tool

 

Material: High Speed Steel

Size: 6.4mm,8mm, 9.5mm,12.7mm (Optional)

Application: used for woodworking punching

 

- The whole heat treatment, HRC48-50, high hardness.

- Drilling core is lengthened, concentricity is high.

- Used with mortising chisel,if extend square hole manually, need to use electric drill,hammer and other tools.

- The dimension refers to the length of the square hole drilled by the square hole.

- The cylinder diameter of the clamped portion is 19mm/0.74inch.

- The square hole drilling core are more than 210mm, belong to longer drilling core.

 

 

- Please allow minor deviation due to manual measurement.

- Due to the difference between different monitors, the picture may not reflect the actual color of the item.