2X (2 db fa fúrófej négyzet alakú fúrócsavarozó famegmunkáló maróvéső Y1F2

2X(2Pcs Wood Drill Bits Square Hole Drill Bits Woodworking Mortising Chisel Y1F2

2X(Fits all mortising machines and drill press attachments
Set of 4 - 1/4-Inch, 5/16-Inch, 3/8-Inch and 1/2-Inch
Made of the highest quality tool bearing steel
High performance flute design geometry for superior chip extraction
Hardness: HRC 48~50
Features:
Professional wood drill bit, suitable for construction, installation, renovation, decoration industry, etc.
Special steel, heat treatment, HRC48~50, high hardness, lengthened core, high concentricity.
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.
Specifications:
Hardness: HRC 48~50
Holder diameter: 19mm (circular)
Drilling core length: 195mm
Slotting flute diameter Total weight
001 1/4 inch(6.4mm) approx 150g
002 5/16 inch (8mm) approx 161g
003 3/8 inch (9.5mm) approx 177g
004 1/2 inch (12.7mm) approx 206g
Shaft length:
1/4 inch(6.35mm): 60mm
5/16 inch(8mm):60mm
3/8 inch(9.5mm):75mm
1/2 inch (12.7mm):60mm
Color: silver black
Material: bearing steel
Package Contents: 2pcs Opening tool)

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