Instructions / Assembly

High Speed Steel Bi-Metal Hole Saws

Instructions

Constructed with the highest grade of steel with M42 Bi-Metal Construction, with 8% industrial grade cobalt

content for longer life than traditional M3 Bi-Metal Hole Saws. The High Speed Steel Bi-Metal Hole Saws offer:

• Reduce cutting time with 1-7/8” depth of cut.

• Solid back plate for cleaner, truer holes and longer tool life.

• Unique ﬂeem ground teeth geometry resulting in improved performance and efﬁcient chip removal.

• 4/6 variable tooth conﬁguration for faster cutting and longer life.

• Diamond side provides quick plug removal, available on 7/8 in. to 6 in. hole saws

• Cat eye openings on solid back plate provide line of sight and aid in plug removal, available on 2 in. to 6 in.

hole saws.

Safety First!

• Always wear eye protection when using this product.

• Wear appropriate working clothes and shoes as needed.

• Wear hearing protection while using this product.

• Utilize a cap to keep long hair away from moving drill.

• Reduce pressure when hole saw is close to drilling through object. Be cautious of foot position as substrates

may be hot once ejected from hole saw.

• When alternating hole saw sizes, disconnect power to drill and allow hole saw to cool down before touching

hole saw.

• Do not touch object or pick up chips immediately after cutting as high heat is generated that can cause a burn.

• Do not modify hole saw for any other purpose. Any inappropriate modiﬁcation of the hole saw may cause an

accident and result in personal injury.

Guidelines for Best Hole Saw Operation

• Choose the appropriate size of hole saw as per application and cutting edge.

• Choose drill with adjustable speed function to avoid damage on cutting edge.

• Ensure pilot bit and arbor are ﬁrmly attached to drill. Drive pins should be fully engaged in drive pin holes.

• Pilot bit should extend at a minimum anywhere from 3/16” to 1/4” from end of tooth points - enough to

establish and hold center.

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High Speed Steel Bi-Metal Hole Saws Instructions Constructed with the highest grade of steel with M42 Bi-Metal Construction, with 8% industrial grade cobalt content for longer life than traditional M3 Bi-Metal Hole Saws. The High Speed Steel Bi-Metal Hole Saws offer: • Reduce cutting time with 1-7/8” depth of cut. • Solid back plate for cleaner, truer holes and longer tool life. • Unique fleem ground teeth geometry resulting in improved performance and efficient chip removal.
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• Keep hole saw vertical with cutting object when in use in corded or cordless drill. • For best performance, follow the recommended RPM based on selected material per table below. • If drilling through metal, we highly recommend the use of good grade of cutting oil to assure cleaner cut and extend the life of the hole saw. • Do not turn off power during drilling. Sudden loss of power may cause damage to the cutting edge of hole saw.
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Diameter Inches MM 1-1/16 27 1-1/8 29 Pipe Tap Diameter Pipe Entrance Diameter Inches MM Inches MM 1 25 3/4 19 Mild Steel Tool S.S.
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Diameter ® ® Pipe Tap Diameter Inches MM Inches MM 3-1/4 83 3 76 3-3/8 86 3-1/2 89 3-5/8 92 3-3/4 95 3-7/8 98 4 102 4-1/8 104 Pipe Entrance Diameter Inches 3 3-1/2 76 89 3-1/2 4 MM 89 Tool S.S.