Brand: SYWAN

Features:

• Widely Used – Great for drilling square holes in wood with a mortising machine or a mortising attachment.
• Easy to Use – It will get double effect by matched use with mortise and tenon machine.The square hole punching needs to use electric drill, hammer or other tools.
• Save Time – these woodworking morstising chisel bits can reduce labor intensity of construction workers, speed up the construction speed, reduce construction costs for construction, installation, renovation, decoration industrie.
• Drills Precise Holes with Little Pressure — Using different specifications of the square hole drill, matching the appropriate power of the square hole machine, you can play a square hole to meet the requirements – 1/2-Inch(12.7mm), 1/4-Inch(6.4mm), 3/8-Inch(9.5mm) , 5/16-Inch(7.94mm).
• High Quality – these square hole drill bits made of high speed steel, through heat processing, with high hardness drill bits, and sharp-edged square chisel, long life.

Part Number: SWS-28

Details: 4Pcs Woodworking Square Hole Drill Bits Wood Mortising Chisel Set Mortise Chisel Bit Kits Woodworking Hole Saw Sets with Twist Drill DIY Mortising Chisel Power Tools

Features:
Suitable for construction, installation, renovation, decoration industry, etc.
Ground and Hardened high speed steel for efficient performance and long life
Apply for woodworking project,construction,installation,decoration industry

Specification:
Material: High Speed Steel(HSS)
Hardness: Up to HRC48~50

Shape of hole: square, rectangle
Suitable for bench drilling machine, mortising machine or a mortising attachment

Package Included:
1PCS 1/4″ (6.4mm) Drill Bit
1PCS 5/16″ (7.94mm) Drill Bit
1PCS 3/8″ (9.5mm) Drill Bit
1PCS 1/2″ (12.7mm) Drill Bit

Package Dimensions: 8.9 x 3.9 x 1.1 inches