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Features: 1.Can replace 50 single drills and process 23 holes with diameters ranging from 18 inch to 1-38 inch 2.Package includes 5 step drills, 1 automatic center punch and 1 aluminum storage box 3.Made of high-speed steel with high hardness, high wear resistance, easily cut metal, plastic, wood 4.Titanium coating can reduce surface friction, sharper and corrosion resistant 5.Double edge and X-shaped opening design, cutting more smoothly 6.Double spiral grooves reduce cutting resistance and remove chips more smoothly 7.Triangular shank design prevents the bit from slipping, for a variety of models 8.Automatic center punch, easy to mark the punching position Warm Tips: 1. Please do not set drilling speed too high to avoid damages to cutting edge Specifications: Item name: Step drill bit set Material: High speed steel with titanium coating Color: Golden Package size: 6 × 5.2 × 1.8 in Package weight: 1.2lb Step Drill Bit Size: #1: 14 inch to 1-38 inch 10 steps (14 inch, 38 inch, 12 inch, 58 inch, 34 inch, 78 inch, 1 inch, 1-18 inch, 1-14 inch, 1-38 inch) #2: 316 inch to 78 inch 12 steps (316 inch, 14 inch, 516 inch, 38 inch, 716 inch, 12 inch, 916 inch, 58 inch, 1116 inch, 34 inch, 1316 inch, 78 inch) #3: 14 inch to 34 inch 9 steps (14 inch, 516 inch, 38 inch, 716 inch, 12 inch, 916 inch, 58 inch, 1116 inch, 34 inch) #4: 18 inch to 12 inch 13 steps (18 inch, 532 inch, 316 inch, 732 inch, 14 inch, 932 inch, 516 inch, 1132 inch, 38 inch, 1332 inch, 716 inch, 1532 inch, 12 inch) #5: 316 inch to 12 inch 6 steps (316 inch, 14 inch, 516 inch, 38 inch, 716 inch, 12 inch) Package list: 5 x Step drill bit 1 x Automatic center punch 1 x Storage box Our products have been well tested, you can rest assured that your purchase is assuredd. Any problems please feel free to contact us first.
A**M
Good Product
GOOD PRODUCT
O**
Muy buenos
Satisfecho
B**.
Buen producto.
Buen producto,fuertes.
N**A
Plumber
One of the best for the price you can’t beat that
S**S
Nope, They will work in a pinch
These could be convinced to work out in a tight pinch other than that their longevity is trash. 1st time I used them on soft metal all the titanium was taken off.You get what you pay for.
A**R
Doesn't work
A good step bit is generally around $40 per for a reason. This item when just making a hole in mild steel slightly larger only cut for about 5 seconds before it was completely shot. The shank design is also poor and doesn't stay in a chuck all that well. I only needed this item to enlarge 2 holes slightly and I didn't even get 1 of them done. This would probably work OK on something like pvc but definitely not designed for metal like listed.
R**S
Excelente herramienta
Excelente herramienta
D**D
Second step dulled first cut, that's so lame
Lame, dulled first time out, bummer
D**Z
Muy Útiles
En 5 piezas se pueden considerar hasta 50 tamaños diferentes que permiten realizar diferentes orificios, de acuerdo a las necesidades de cada trabajo... son muy resistentes al trabajo realizado y realizan la circunferencia de manera exacta... muy recomendable!!!
A**S
Excelente producto!!!
Las he probado en madera, plástico y acrílico y el manejo y suavidad de operación se siente al realizar tus trabajos!!!
E**S
Funcion práctico
Herramienta que facilita el trabajo de perforacion a medidas
J**O
El recubrimiento
Se calientan mucho las brocas y acaba desprendiéndose el recubrimiento haciendo que se atoren en ocasiones las brocas en el mismo hoyo que se quiere ampliar, el lápiz-punzón marcador si funciona bien
I**
No vale la pena
Con grand dificultad a penas pude hacer hoyo a una lámina de 1mm de gruesa . El estuché donde vino esta muy bonito pero la piedad no caben en los espacios diseñados . No funciona como es de esperarse , no se muy baja calidad . Mejor inviertan en algo mejor y no pierdan su tiempo o dañen su proyecto , tuve que usar 3 otros aparatos para corregir lo que este destruyó .
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منذ شهر
منذ شهر