Twist Drill Bit and Mortising Chisel Set - 6.4mm to 16mm Woodworking Tools Kit

Twist Drill Bit and Mortising Chisel Set Is A Great Partner For Woodworking.
Drill Perfect Square Holes For Your Woodworking Projects.
The quickest, easiest way to get the most precise square hole in your wood. Save time & energy! Makes consistently clean cuts with exceptional efficiency.

Description:
Precise - Sharp edges and points make consistently clean cuts with exceptional efficiency. Prevent frustration and save your time as you complete your tasks. 
Quick and Easy - Use this toolset on compatible drills and get the perfect result within minutes.
Top Quality - Made from high-speed steel, after professional heat treatment, HRC48~50, ensuring its high hardness and high concentricity. 
Universal Usage - Compatible with almost every standard square hole drill drilling (mortise and tenon machine) to use. 
Wide Application - Great for drilling square holes in wood with a mortising machine or a mortising attachment. Fits all mortising machines and drill press attachments. A square hole drill is mainly used for woodworking aspects.
These long square drill bits set can meet most of your needs, and each drill is packed in a single plastic case, easy to maintain.

Specifications:
Name: Hollow Chisel Mortise Drill Tool
Material: High-Speed Steel
Product size: 1/4 in (6.4 mm), 5/16 in (8 mm), 3/8 in (9.5 mm), 2/5 inch (10 mm), 1/2 in (12.7 mm), 9/16 inch (14 mm), 5/8 inch (16 mm)
Weight:
1/4 inch (6.4mm) - 117g
5/16 inch (8 mm) - 140g
3/8 inch (9.5 mm) - 170g
2/5 inch (10 mm) - 200g
1/2 inch (12.7 mm) - 210g
9/16 inch (14 mm) - 225g
5/8 inch (16 mm) - 240g

Package list:
1  * Square hole drill/1 Set Square hole drill

Notes:
1. Please allow 1-3mm differences due to manual measurement, thank you for your understanding!
2. Due to the difference between different monitors, please understand that t