Helix /Spiral Flute Step Drill Bits

Product Details
Customization: Available
Customized: Customized
Standard: DIN, JIS, AISI
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Registered Capital
600000 RMB
Plant Area
>2000 square meters
  • Helix /Spiral Flute Step Drill Bits
  • Helix /Spiral Flute Step Drill Bits
  • Helix /Spiral Flute Step Drill Bits
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Basic Info.

Model NO.
metric and inch
Length
Jobber-length
Type
Twist Drill Bit
Material
High Speed Steel
Usage
Metal Drilling
Transport Package
on Request
Specification
DIN ANSI
Trademark
stc
Origin
Jiangsu
HS Code
82075090
Production Capacity
50000PCS/Month

Product Description

Helix /Spiral Flute Step Drill BitsHelix /Spiral Flute Step Drill BitsHelix /Spiral Flute Step Drill BitsHelix /Spiral Flute Step Drill BitsHelix /Spiral Flute Step Drill BitsHelix /Spiral Flute Step Drill BitsHelix /Spiral Flute Step Drill Bits








We made CBN ground spiral flute step drill bits.

It is made from high grade of high speed steel.

Round shank, hex shank available.

Tin coating and Tialn coating availabe.

Sets on request.
 
STC001, HSS STEPS DRILL
Material: HSS.
Bright Finishing or Tin-coated.
  Pict
 
       
           
           
           
STC001A, INCH SIZES STEPS DRILL
No. of Holes Description Shank Diameter Step Thickness
13 1/8" - 1/2" by 1/32" increase 1/4" 1/8"
6 3/16" - 1/2" by 1/16" increase 1/4" 3/8"
9 1/4" - 3/4" by 1/16" increase 3/8" 1/8"
12 3/16" - 7/8" by 1/16" increase 3/8" 1/8"
10 1/4" - 1.3/8" by 1/8" increase 1/2" 1/8"
 
STC001A, INCH SIZES STEPS DRILL
No. of Holes Description Shank Diameter
9 4 - 12mm by 1mm Increase 6/6.5mm
5 4 - 12mm by 2mm Increase 6/6.5mm
7 6 - 18mm by 2mm Increase 10mm
8 6 - 20mm by 2mm Increase 8mm
12 6 - 30mm by 2/3mm Increase 10mm
9 4 - 20mm by 2mm Increase 10mm
10 4 - 22mm by 2mm Increase 10mm
14 4 - 30mm by 2 mm increase 14mm
13 5 - 35mm by 2/3mm Increase 13mm
           
STC001-S, STEPS DRILL SET
  Pict
 
       
           
           
           
           
           
           
           
           
           
           
           
           
           
Model pcs/set DESCRIPTION   PACKING
STC001-S1 3pcs/set 4 - 12 x 9 Metal / wood / plastic
4 - 20 x 9
4 - 30 x 14
STC001-S2 3pcs/set 4 - 12 x 5 Metal / wood / plastic
4 - 20 x 9
4 - 32 x 15
STC001-S3 3pcs/set 4 - 12 x 9 Metal / wood / plastic
6 - 20 x 8
6 - 30 x 13
STC001-S4 3pcs/set 3/16" - 1/2" x 6 Metal / wood / plastic
1/8" - 1/2" x 13
1/4" - 3/4" x 9

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