Faster and more accurate than twist drilling

Unibroach® Cutters are made of hardened, high-speed tool steel and precision-ground with up to 16 teeth for fast drilling

CS Unitec's Unibroach® Annular Cutters drill a burr-free finished hole by cutting only the material around the periphery of the hole. This forms a solid slug which automatically pops out.

• Less time and energy are consumed per hole
• Faster feed rates are achieved with more cutting teeth and less tool wear
• Lighter, less powerful drilling equipment can be used
• Able to drill holes which are difficult or impossible to do accurately with conventional twist drill tooling - with no predrilling or stepdrilling required.

Step 1 Center pilot pin accurately centers cutter over area to be drilled.

Step 2 During drilling, the pilot pin retracts and allows internal coolant to reach the cutting teeth.

Step 3 When hole is complete, the slug is automatically ejected from the cutter.

Less Friction = Less Heat = More Holes!
Increase tool life and achieve faster feed rates

ARMOR-PLATED Unibroach™ Cutters, at 90Rc hardness, are the state-of-the-art in hole cutting technology. They multiply service life, reduce cost and increase productivity.

• 3 to 4 times longer tool life with TiAlN coating
• Drill with less friction and more power
• Withstands higher working temperatures — up to 1480°F (800°C)
• Dry drilling or lubricating with water simplifies working conditions and cleanup*
• Prevents cold weld — metal chips do not adhere to the cutter
• Ideal for structural steel and hard metal
• 3/4" dia. shank (1-1/4" dia. shank available)

* After the TiAlN coating is worn, lubricate with cutting oil

ARMOR-PLATED Unibroach™ cutters are available in the following sizes:
1" drill depth - Ø 7/16" to Ø 5"
2 " drill depth - Ø 7/16" to Ø 5"
3 " drill depth - Ø 7/16" to Ø 5"

CNC-ground flutes run the length of the cutter for efficient chip clearance. This increases drilling productivity and decreases cutter breakage.

Annular Cutters are the standard hole-making drills in the industry. Ideal for heavy-duty use on-site or in the shop, our HSS Unibroach® cutters are available in the following sizes:

1" drill depth — Ø 7/16" to Ø 5"
2" drill depth — Ø 7/16" to Ø 5"
3" drill depth — Ø 3/4" to Ø 5"

• CNC precision ground for fast penetration, accuracy and long life
• Drill holes 3 times faster than twist drills
• Produce reamed-quality burr-free holes and solid slugs
• Reduce machine size and weight
• Cutting edges are resharpenable
• Eliminate time-consuming, costly pilot holes and step drilling

• Use high-speed RPM for best results and faster holemaking
• Ideal for drilling steel with rust or paint
• Will outlast High-speed Steel cutters
• Leaves a burr-free finished hole
• Available in all sizes (fractional and metric)
• 3/4" or 1-1/4" shank

Available in the following sizes:
1" drill depth — Ø 5/8" to Ø 2 "
2" drill depth — Ø 11/16 " to Ø 5"
3" drill depth — Ø 13/16 " to Ø 2"

• Unibroach® Cobalt Cutters are made with 5% cobalt to increase resistance to wear
• Excellent results when drilling high-tensile steel and difficult-to-machine materials
• Available with TiAlN coating upon request
• Available for hole sizes up to 5" dia.

Drill perfect holes up to 5" diameter without runout
• Standard with 3/4" or 1-1/4" shank diameters
• More cutting teeth to distribute the load evenly
• Increase tool life and achieve faster feed rates
• Use on milling machines, drill presses, CNC and other equipment
• A solid slug has a higher value for scrap metal
• Available in HSS, Cobalt, TCT and ARMOR-PLATED Unibroach™

Kits include one each: 9/16", 11/16", 13/16", 15/16", 1-1/16" (for cutter depth of 1" or 2"), pilot pin and plastic case.