3/16-1/2" HSS Step Drill
SKU
404-1402
Online Price Only: $5.39 Regular Price: $8.47
In stock
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Details
| drill category | Hole Enlarging Drills |
|---|---|
| Brand | Shars Tool |
| Mfg SKU # | 404-1402 |
| Shank Diameter | 1/4 |
| finish coating | uncoated |
| Min drill size | 3/16 |
| max drill size | 1/2 |
| step | 3/8 |
| Number of Steps | 6 |
| type size | Fraction |
| Coolant Through | No |
| Shank Type | round shank |
Spotlight
- For use in industrial power tools or pedestal drilling machines
- Each step produces accurate, parallel holes with a small clearance on the nominal diameter
- The maximum material thickness is determined by the length of the step (if the work piece can be reversed multiply thickness by 2
- Used for steel, copper, brass, aluminum and other thin materials
- Also ideal for drilling through wood, composition board, and even plexiglass and plastics which often crack with standard twist drills
- HSS6542, 2.4 times longer lifetime than general HSS4241.
-
- Workpiece material: SAE1045.
- Workpiece material hardness: HRC15
- Drilling Operation: blind hole drilling
- Drill Diameter: 15/64"
- Cutting Parameters: Vc=62 SFPM; fr=0.0078 in/r; H=0.826in
- Cooling System: water soluble cooling
- Conclusion: Shars industrial grade HSS6542 drill has performed 194 numbers of holes before showing normal wear while generic import grade HSS4241 tin coated drill from company A has performed 80 numbers of holes before showing edge chipping. Industrial grade M35 cobalt drill has performed 266 numbers of holes before showing normal wear.
- Grade HSS6542 and M35 drill set from Shars Tool has shown significant improvement in tool life than other generic import drills on the market.
- Better life improves machining efficiency.
