Description:
Hole Saw Drill Bit Lock Installation Hole SawSpecification:
Type
#1
#2
#3
#4
Item
Tooth shape
Four tooth
Five tooth
Six tooth
Material
Alloy
Type
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Description:
HRC89 M3-M10 Combination Drill Tap Bit Set TiAlN Coated Deburr Countersink BitsUses HSS-Co material, hardness up to HRC89, more durable,can be used for drilling the steel plate even the 2-4mm 304 steel plate.
Industrial Grade TiALN Coating,TiAlN coating surface will form Al2O3 w..
Description:
HSS Co M35 Cobalt Combination Drill Tap Bit M3-M10 Deburr Countersink Drill Bit
Uses HSS-Co material(far better than 4241, 6542 material), more durable,can be used for drilling the steel plate even the 2-4mm 304 steel plate.
Service life is 5-10 times longer than tap drill. (Service..