7pcs 3-10mm Countersink Drill Bit Carpentry Woodworking Boring Tool Round Shank With Hex Key

Countersink Drill Bits with One Hex Wrench, drill Size 3-10mm.

 

Drill Head: HSS4241 with titanium coating

Woodworking Chamfer: high-speed steel #45

Shank: Round handle

 

3mm(Dia) x 52mm(L)

4mm (Dia)x 67mm(L)

5mm(Dia) x 84mm(L)

6mm (Dia)x 89mm(L)

7mm(Dia) x 103mm(L)

8mm (Dia)x 115mm(L)

10mm(Dia) x 120mm(L) 

 

??High Carbon Steel for superior cutting power. 

??Three Sharp Positioning: Not easy to slip, quasi-drilling and fast.

??Fast Chip Removal: Faster discharge of sawdust, you will get a nice smooth surface on any type of hard, soft wood or aluminum.

??Countersink drill tool Round handle design suitable for market bench drill.