●Color :Silver Tone ;Material :Made of High Speed Steel,more hardness and duarable. ●Drill tip diameter:1/2/3/4/5mm ●Outer diameter:4/5/8/10/12mm ●Total length:100/100/100/120/100mm ●Package Included: 5pcs HSS Lengthened Center Drills
Description
5pcs/1 Set HSS Silver Tone Combined Center Drill Bit Countersink
Atoplee 5pcs/1 Set HSS Silver Tone Combined Center Drill Bit Countersink
Package Included: 5pcs HSS Lengthened Center Drills
Standard 60 degree included angle without a protector of cone ( type A)
Machining diameter d = 1 ~ 10 mm of center hole, usually use the center drill ( type A) without a protector of cone.