4PCS HSS Square Hole Mortising Twist Auger Drill Bits 1/4''-1/2'' Set

Description:
4PCS HSS Square Hole Mortising Twist Auger Drill Bits 1/4"-1/2" Set

Item Specifics:
Type: Square Hole Drill Bit
Quantity: 4PCS
Material: High Speed Steel
Length: 210mm
:
Size: 6.35mm(1/4"),7.94mm（5/16"),9.5mm(3/8"),12.7mm(1/2")
（1cm=0.39Inches）

Features:
- 4 size can make the hole different size.
- The whole drill is heat treated,offering higher hardness.
- Partial black oxide treatment prevent rusty and provide beautiful appearance.
- High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance.
- The length is longer than the normal one.

Usage:
Application:Suitable for carpentry,pplicable to the construction, installation, decoration,decoration industry use.
Mainly used in the square tenon machine, specially used for a drill square hole, it can be used on electric drill.

Package Included:
1 X Set(4pcs)Square Hole Drill Bit

Note:
1.Please allow 1-3cm error due to manual measurement. Please make sure you do not mind before you bid.
2.The colors may have different as the difference display, please understand.













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