Master® Hole Punch Series

by Martin Yale®

Electric Models:

Master® 3-Hole Battery Operated Desktop Punch

Model EP312

• Punches 10 sheets of 20 lb. paper consistently without jamming
• Designed for easy use and hand held operation if desired
• Enough power to last more than one year of average use
• Easy to use button on top - just push and punch effortlessly
• 9/32" holes for easy page turning with less tearing
• Adjustable paper guide built in base, also has a large chip holder
• Operates with 6 AA batteries (not included) or 120 volt power transformer (provided)

Master® 3-Hole Battery Operated Desktop Punch

Model EP320

• Small size is ideal for desktop use and storage
• Punches 20 sheets of 20 lb. paper consistently without jamming
• Easy to use button on top - just push and punch effortlessly
• 9/32" holes for easy page turning with less tearing
• Adjustable paper guide built in base, also has a large chip holder
• Includes an AC adapter

Master® Duo™ Electric Punch

Model EP323

• Compact design for desktop storage
• Same machine will punch 2-hole or 3-hole - no adjustment needed
• Capacity of 12 sheets - either 2 or 3 holes
• One side is a dedicated 2-hole punch, while the other side is a dedicated 3-hole punch
• 3,000 punch battery life
• Operates with 6 AA batteries (not included) or 120 volt power transformer (provided)
Patent pending
Model EP312 EP320 EP323
Punch Pin Diameter 9/32" 9/32" 9/32"
# of Sheets 10 20 12
Dimensions 11 3/8"w X 3 3/4"d X 2 1/8"h 11 3/8"w X 3 3/4"d X 2 1/8"h 10 1/4"w X 5 1/2"d X 3 1/8"h
Weight  2.2 lbs. 3.9 lbs. 3 lbs.
Item Number 188M-EP312 188M-EP320 188M-EP323
Price $Call $Call $Call

 Manual Models:

Master® 40-Sheet 2-Hole Punch
w/Lever Handle

Model 3275B

• Lever handle provides easier punching
• Punches up to 40 sheets of 20 lb. bond paper
• Adjustable ruled paper guide ensures exact centering
• Large capacity paper chip pan
• Non-skid feet
• Heavy-gauge steel construction

Master® Adjustable 24-Sheet 3-Hole Punch

Model 325B

• Lever handle provides easier punching
• Punches up to 24 sheets of 20 lb. bond paper
• Adjustable punch heads for convenient 2 or 3-hole punching
• Accepts 2 to 7 punch heads (extra punch heads available pg. 36)
• Adjustable ruled paper guide ensures exact centering
• Large capacity paper chip pan
• Non-skid feet
• Heavy-gauge steel construction

Master® Adjustable 40-Sheet 3-Hole Punch

Model 1325B

• Lever handle provides easier paper punching
• Punches up to 40 sheets of 20 lb. bond paper
• Adjustable punch heads for convenient 2 or 3-hole punching
• Accepts 2 to 7 punch heads
• Margin depth guides adjust for custom punching needs
• Adjustable ruled paper guide
• Large capacity paper chip pan
• Non-skid rubber feet

Master® 80-Sheet 3-Hole Mega-Duty Punch

Model MP80

• Powerfully punches up to 80 sheets of 20 lb. bond paper
• Spring-assisted mechanism and oversized handle for easier punching of stacks
• Pre-set to punch 1/4" diameter holes to fit a standard 3-ring binder
• Handle locks down for storage and safety
• Flip-up guards on each punch head ensure safe use and assist in alignment
• Adjustable paper guide
• Large capacity chip pan
• Non-skid rubber feet
• Replacement kit (Model MP80SET) includes 3 hollow punch pins and 6 cutting disks
Model 3275B 325B 1325B MP80
Punch Pin Diameter 9/32" 9/32" 9/32" 1/4"
# of Sheets 40 24 40 80
Dimensions 5"w X 6 1/8"d X 6 7/8"h 11"w X 7 1/4"d X 7"h 11"w X 7 1/4"d X 7"h 10 1/4"w X 10 1/2"d X 9"h
Weight 2.6 lbs. 4.0 lbs. 5.8 lbs. 7.0 lbs.
Item Number 188M-3275B 188M-325B 188M-1325B 188M-MP80
Price $Call $Call $Call $Call