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Metal Shears

What is the shearing angle of punch for sheet metal shearing?

the geometry of shearing punch design

Typically, the punch and die hole diameters are chosen so that the clearance between the 2 is 1/3 the thickness of the sheet metal. (A little more for more brittle materials and a little less for more malleable ones.)

The inverse tangent of 1/3 is 18.43 degrees.

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2 Air Tools Metal Shears Nut Runner USED
2 Air Tools Metal Shears Nut Runner USED
$39.99
18 in Drywall Mud Pan Metal Container Bin Stainless Steel Shear Side
18 in Drywall Mud Pan Metal Container Bin Stainless Steel Shear Side
$32.09
Wiss Avaitation Metal Shears Tin Snips M1 M2 M3 Left Right Straight Cutters
Wiss Avaitation Metal Shears Tin Snips M1 M2 M3 Left Right Straight Cutters
$24.95
Sheet Metal Nibbler Steel Cutter Hand Nibbler Shear AT249
Sheet Metal Nibbler Steel Cutter Hand Nibbler Shear AT249
$25.24
Air Nibbler Sheet Metal Cutter Cutting Metal Steel Puch Metal Shears Cut TE823
Air Nibbler Sheet Metal Cutter Cutting Metal Steel Puch Metal Shears Cut TE823
$53.29
CT1812 2PC Electricians Scissors Shears Cutter Set Also Cuts Flat
CT1812 2PC Electricians Scissors Shears Cutter Set Also Cuts Flat
$12.52
8 pcs ACCUKUT DOCAP Aviation Tin Snips Pliers Right Cut Metal Shears Scissors
8 pcs ACCUKUT DOCAP Aviation Tin Snips Pliers Right Cut Metal Shears Scissors
$99.99
Cooper Tools Wiss Metalmaster Snips tin shears metal cutter
Cooper Tools Wiss Metalmaster Snips tin shears metal cutter
$9.50
Sheet Metal Nibbler Steel Cutter Hand Nibbler Shear AT249
Sheet Metal Nibbler Steel Cutter Hand Nibbler Shear AT249
$24.00
526B 26 Inch Premium Replacement Blade for RCT 526 Shear Steel Metal Silver
526B 26 Inch Premium Replacement Blade for RCT 526 Shear Steel Metal Silver
$67.87
DIACRO 36 INCH SHEET METAL SHEAR 16 GA NICE HVAC TINSMITH N PEXTO N USA CUBA
DIACRO 36 INCH SHEET METAL SHEAR 16 GA NICE HVAC TINSMITH N PEXTO N USA CUBA
$900.00
New Milwaukee 18 Gauge Metal Shear Hex key 6852 20
New Milwaukee 18 Gauge Metal Shear Hex key 6852 20
$230.00
5 Piece Used Tin Metal Snips Shears Cutters 2 Without Spring Open
5 Piece Used Tin Metal Snips Shears Cutters 2 Without Spring Open
$22.00
21V Sheet Metal Cutter Shear Attachment Fits Universal Impact Drivers 1850r min
21V Sheet Metal Cutter Shear Attachment Fits Universal Impact Drivers 1850r min
$129.57
Pneumatic Pistol Grip Metal Cutting Shear ACME MP 7705
Pneumatic Pistol Grip Metal Cutting Shear ACME MP 7705
$59.99
Malco Turbo Shear Heavy Duty Metal Cutting Shear Pneumatic TSHD1A
Malco Turbo Shear Heavy Duty Metal Cutting Shear Pneumatic TSHD1A
$256.99
Bosch GNA 35 Professional Corded Metal Shear Scissor Cutter Nibbler Grinder
Bosch GNA 35 Professional Corded Metal Shear Scissor Cutter Nibbler Grinder
$985.00
MAKITA ARMATURE 619237 4 ROTOR 18V BJS130 LXT Li Ion Cordless Metal Shears
MAKITA ARMATURE 619237 4 ROTOR 18V BJS130 LXT Li Ion Cordless Metal Shears
$35.50
Rothenberger 55090E 1 1 8 Inch Economy Plastic Pipe Shears with Metal Blade
Rothenberger 55090E 1 1 8 Inch Economy Plastic Pipe Shears with Metal Blade
$8.64
QUACKENBUSH PNEUMATIC ROTARY SHEAR SHEET METAL AIRCRAFT TOOL
QUACKENBUSH PNEUMATIC ROTARY SHEAR SHEET METAL AIRCRAFT TOOL
$314.99
QUACKENBUSH CO US MADE PNEUMATIC ROTARY SHEAR AIRCRAFT SHEET METAL TOOL
QUACKENBUSH CO US MADE PNEUMATIC ROTARY SHEAR AIRCRAFT SHEET METAL TOOL
$650.00
Chicago Tool Pneumatic Metal Shear 3200 ATMS036ABA
Chicago Tool Pneumatic Metal Shear 3200 ATMS036ABA
$40.00
3 Wiss Aviation Sheet Metal Shears M2  2 qty M3 Free USA Shipping
3 Wiss Aviation Sheet Metal Shears M2 2 qty M3 Free USA Shipping
$19.99
Desoutter Pneumatic Air Shear Model H137 N or 8410 Metal Cutting Tool
Desoutter Pneumatic Air Shear Model H137 N or 8410 Metal Cutting Tool
$325.00
diamond battery hydraulic shear for metal wire mesh re bar 12v DCC 16L
diamond battery hydraulic shear for metal wire mesh re bar 12v DCC 16L
$980.00
DEWALT DWASHRIR 18G SHEET METAL CUTTER SHEAR ATTACHMENT FOR MOST IMPACT DRIVERS
DEWALT DWASHRIR 18G SHEET METAL CUTTER SHEAR ATTACHMENT FOR MOST IMPACT DRIVERS
$65.99
QUACKENBUSH  PNEUMATIC ROTARY SHEAR SHEET METAL CUTTER  AIRCRAFT TOOL
QUACKENBUSH PNEUMATIC ROTARY SHEAR SHEET METAL CUTTER AIRCRAFT TOOL
$179.99
8 Hand Shear Sheet Metal Shearer Metal Cutting Cutter
8 Hand Shear Sheet Metal Shearer Metal Cutting Cutter
$119.99
METAL SHEARS TR70 AIR TOOL I05017362
METAL SHEARS TR70 AIR TOOL I05017362
$29.99
Sheet Metal Left Cutting Shear Aviation Tin Snips Steel Scissors Hand Tool Red
Sheet Metal Left Cutting Shear Aviation Tin Snips Steel Scissors Hand Tool Red
$35.54
Sheet Metal Right Cut Shear Aviation Tin Snips Steel Scissors Hand Tool Green
Sheet Metal Right Cut Shear Aviation Tin Snips Steel Scissors Hand Tool Green
$34.59
Sheet Metal Offset Straight Cut Shear Aviation Tin Snips Scissors Hand Tool New
Sheet Metal Offset Straight Cut Shear Aviation Tin Snips Scissors Hand Tool New
$34.52
Bull Dog Aviation Snips Sheet Metal Shears Tin Cutting Steel Scissors Tool Blue
Bull Dog Aviation Snips Sheet Metal Shears Tin Cutting Steel Scissors Tool Blue
$29.66
8 Manual Hand Shear Shearer Sheet Metal Steel Cutter FREE SHIPPING
8 Manual Hand Shear Shearer Sheet Metal Steel Cutter FREE SHIPPING
$116.50
Offset Long Cut Aviation Snips Metal Shears Tin Roofing Sheet Scissors Hand Tool
Offset Long Cut Aviation Snips Metal Shears Tin Roofing Sheet Scissors Hand Tool
$34.02
Upright Left Cut Aviation Snips Metal Shears Tin Roofing Sheet Scissor Hand Tool
Upright Left Cut Aviation Snips Metal Shears Tin Roofing Sheet Scissor Hand Tool
$34.41
Upright Right Cut Aviation Snips Metal Shears Tin Roofing Sheet Scissor Tool New
Upright Right Cut Aviation Snips Metal Shears Tin Roofing Sheet Scissor Tool New
$34.41
3 STRAIGHT WISS M1 SNIPS SHEET METAL TOOL SHEARS MILITARY YELLOW TIN STUD USED
3 STRAIGHT WISS M1 SNIPS SHEET METAL TOOL SHEARS MILITARY YELLOW TIN STUD USED
$12.00
Straight Cut Aviation Shears Tin Sheet Metal Snips
Straight Cut Aviation Shears Tin Sheet Metal Snips
$10.99
Bosch GSC 75 16 Electric Shear Scissors Iron Metal Cutter 220V
Bosch GSC 75 16 Electric Shear Scissors Iron Metal Cutter 220V
$498.00


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