6PC 6PCS HSS 4341 6542 Steel Titanium Screw Tap Taper Twist Tapping Thread Screws Taps Drill Bit Bits Set 1/4" Hex Shank

6542 are Better performance and refer as “Above Medium” grade

9341 are Comprehensive performance and refer as “Good” grade

These grade names represent the approximate percentages of tungsten, molybdenum, chromium and vanadium in the HSS material

Example : 4341 = W4Mo3Cr4VSi

M35 are High performace and refer as “High” grade

M35 contains additional 5% cobalt, which can increase the HSS material’s capability to keep its high hardness under the high temperature generated in the drilling.

Feature:

100% brand new and high quality.

Material: HSS ,high hardness, rustproof, solid and durable.

Drilling and tapping at the same time, save you time and effort.

Self-centering design: do not need additional center drilling or center punching.

Suitable for drilling, tapping, cutting on soft metal, aluminum plate, iron, etc.

Specification:

Square handle: 6.35MM (1/4")

Material: HSS4341 / HSS6542

Surface Treatment: Titanium Coated

Bit Size (MM) x Thread Spacing ; Drill diameter

M03x0.50 ; 2.5mm

M04x0.70 ; 3.3mm

M05x0.80 ; 4.2mm

M06x1.00 ; 5.0mm

M08x1.25 ; 6.8mm

M10x1.50 ; 8.5mm

Length

HSS4341 (MM) : 54 ~ 58

HSS6542 (MM) : 66 ~ 72

Weight

HSS4341 : 60g

HSS6542 : 85g

Package Include: