Before Use, Check the Power and Stiffness of the Machine Tool to Ensure That the Required Diameter of the Step Drill bit Can Be Used on the Machine Tool
Product description
1.[High quality]:Industry grade fully ground high speed steel with T-itanium coating reduces friction and drills with less heat,which ensures strong wear-resistance and durability;
2.[Material]:1/4"Hex-Shank quick change fits into majority pistol drill and drill press securely without slip and shedding 118°X-type split point and Two-flute double cutting blades design;
3.[Widely Used]:Perfect step drill bits suitable for drill holes in various material:within 3mm/0.12 inch (iron plate,copper plate,Alum-inums plate);within 5mm/0.2 inch (wood,PVC sheet,insulation boards).Not suitable for hard and brittle materials such as stainless steel,glass,tile floors,walls etc.
4.[Package Included]:3pcs HSS groove step drill bit (4-12/4-20/4-32mm).1/4"Hex shaft drives are suitable for all kinds of for home DIY power drills.
Features
1.High speed,T-itanium nit-ride coated steel Replaces 28 separate drill bits Two fluted design for fast,smooth cutting;
2.When inject cold water while working,can effectively extend the service life of the drill bit.Recommend drilling rate of 250-250 RPM;
3.1mm thickness can be operated by hand drill,2~3mm please use bench drill.the drill must continue to cool down when it is working,and it is not easy to burn;
4.diameter holes,you can achieve one-time processing of large holes,no need to replace the drill bit and positioning hole.
Specification
Item:step drill bit set
Material:high speed steel
Shank:hexagon shank
Sizes:4-12,4-20,4-32
Measurement
4-12:5 Steps (Diameter 4,6,8,10,12mm)
4-20:9 Steps(Diameter 4,6,8,10,12,14,16,18,20mm)
4-32:15 Steps(Diameter 4,6,8,10,12,14,16,18,20,22,24,26,28,30,32mm)
Product description
1.[High quality]:Industry grade fully ground high speed steel with T-itanium coating reduces friction and drills with less heat,which ensures strong wear-resistance and durability;
2.[Material]:1/4"Hex-Shank quick change fits into majority pistol drill and drill press securely without slip and shedding 118°X-type split point and Two-flute double cutting blades design;
3.[Widely Used]:Perfect step drill bits suitable for drill holes in various material:within 3mm/0.12 inch (iron plate,copper plate,Alum-inums plate);within 5mm/0.2 inch (wood,PVC sheet,insulation boards).Not suitable for hard and brittle materials such as stainless steel,glass,tile floors,walls etc.
4.[Package Included]:3pcs HSS groove step drill bit (4-12/4-20/4-32mm).1/4"Hex shaft drives are suitable for all kinds of for home DIY power drills.
Features
1.High speed,T-itanium nit-ride coated steel Replaces 28 separate drill bits Two fluted design for fast,smooth cutting;
2.When inject cold water while working,can effectively extend the service life of the drill bit.Recommend drilling rate of 250-250 RPM;
3.1mm thickness can be operated by hand drill,2~3mm please use bench drill.the drill must continue to cool down when it is working,and it is not easy to burn;
4.diameter holes,you can achieve one-time processing of large holes,no need to replace the drill bit and positioning hole.
Specification
Item:step drill bit set
Material:high speed steel
Shank:hexagon shank
Sizes:4-12,4-20,4-32
Measurement
4-12:5 Steps (Diameter 4,6,8,10,12mm)
4-20:9 Steps(Diameter 4,6,8,10,12,14,16,18,20mm)
4-32:15 Steps(Diameter 4,6,8,10,12,14,16,18,20,22,24,26,28,30,32mm)
