Shars F 25/32″~27/32″ HSS 6542 Adjustable Hand Reamer New
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Regular  Price: $34.56
Wholesale Price: $21.80 (Save $12.76 36.92% OFF)
Product Code
SKU
404-7338
REAMER CATEGORY
Adjustable Blade Reamer
BRAND
Shars Tool
OVERALL LENGTH
7-3/4
MATERIAL
HSS
INDUSTRIAL SIZE REAMER
F
CUTTING RANGE REAMER
25/32″-27/32″
19.75mm-21.50mm
Product features
American standard
Blades are adjustable and move within tapered slots in the reamer body
To adjust these reamers the blades are moved within these slots by loosening the nut at one end and tightening the nut at the other
Movement permits the reamer to be set to any desired diameter within the range of the size adjustment
Adjustment feature allows reamer to maintain a specific size by compensating for wear
Can be readjusted to expand and reground to the appropriate size and resharpened
Only could use by hand, use on machine could damage the blade.
Blade material: High Speed Steel #6542 which last 2.4 times longer than general HSS 4241. Most blade material on the market is high carbon steel, which
is even worse than HSS 4241, and the life is shorter than HSS 4241. The price of HSS 4241 material is higher than that of high carbon steel.
Maximum workpiece can not be more than 220 Brinell hardness
Please refer to the following 15/64″ (6mm) drill bit test report of HSS 6542 material. All drill bits imported from China are made of HSS 4241 or HSS 4341. HSS 6542 material is $1572/ton, and HSS 4241 material is $429/ton. The price of HSS 6542 material is 3.67 times higher than that of HSS 4241.
When the material of the workpiece is the same, the drill bit is worn after 74 holes are drilled with the
15/64″ (6mm) drill bit made of HSS 4241. T
he drill bit is worn after 194 holes are drilled with the
15/64″ (6mm) drill bit made of HSS 6542. The service life of the drill bit with the material of HSS 6542 is increased by 2.62 times and the cost is saved by 2.62 times.
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.
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RETURNS:
If the item stated as brand new is found defective on arrival or incorrect item was shipped, buyer understands that the product will be repaired or replaced at seller’s discretion, and be given a reasonable amount of time. Buyer is responsible for return shipping costs and insurance. Warranties are offered by the manufacturer and will be honored by the manufacturer. All shipping and handling fees will not be returned in any case.