Feature
●Spiral cone design prevents damage to the thread from excess drilling.
●3 in one, thread cutter of the three work done in one step. Drill hole, cut thread, countersink.
●High hardness, quick replacement composite membrane, uses drill principle edged.
●Even centring tip, you do not need pre-drilling centre drilling or graining.
●Package includes: 6 x drill countersinks (M3, M4, M5, M6, M8, M10)
Description
6-piece combination tap bit set 1/4 inch HSS M3-M10 screw hex shank countersink tools drill bit set hand taps machine tap drill bits set stainless steel HSS features: ► Suitable for drilling, thread cutting, cutting on soft metal, aluminium plate, iron, etc. ► Quick change composite cone, according to the drilling edge principle. ► Drilling and thread cutting in one step processing, save a lot of work steps and time, improve work efficiency. ► Self-centering point, do not need assisted centre drilling or centre punching. ► The combination of drilling and tapping in one operation and that with conventional drills is ingenious.
Description: Shank diameter: 6.2 mm 1/4 hex shank material: High speed steel.
Box contents: 6 x tap countersunk head.
Design allows for drilling, thread cutting, deburring and countersinking in steel, copper and aluminium.