BIG DAISHOWA High Performance Tooling Solutions Vol 4

BACK COUNTERBORING TOOLS

BF-CUTTER Exclusively Designed for Back Spot Facing of Cap Bolt Holes HOLE DIAMETER: Ø.256"-1.299" (Ø6.5-33mm) Cap bolt size M6-M30, for ø1/4"-1"

COOLANT

THROUGH

Effective Cutting Depth A L

L 1

Fig. 1

Effective Cutting Depth A L

L 1

Fig. 2

L

Effective Cutting Depth A

L 1

Effective Cutting Depth A

Effective Cutting Depth A

Fig. 3

Catalog Number

Facing øD

Min Hole Dia. ød

Offset F

Insert Model

Fig.

øDs

L

A

L 1

ST16-BFM6/11-12 ST16-BFM8/14-20 ST16-BFM10/17.5-25 ST16-BFM12/20-36 ST20-BFM14/23-49 ST20-BFM16/26-56 ST32-BFM18/29-63 ST32-BFM20/32-70 ST32-BFM22/35-77 ST32-BFM24/39-84 ST32-BFM27/43-95 ST32-BFM30/48-105

.433 .551 .689 .787 .906

.256 .335 .413 .512 .591 .669 .748 .827 .906 .984

4.016 4.252 4.409 4.803 5.354 5.591 7.402 7.677 7.953 8.425 8.858 9.252

.472 .787 .984

.094 .114 .144 .144 .163 .183 .205 .224 .244 .287 .268 .307

.354

1

16mm

CM0502

.394

2

1.417 1.929 2.205 2.480 2.756 3.031 3.307 3.740 4.134

2

20mm

.394

CM0502

1.024 1.142 1.260 1.378 1.535 1.693 1.890

.590

CC †† 07..

3

32mm

.787

CC †† 09..

1.181 1.299

ACCESSORIES

• Wrench and screws are included; inserts must be ordered separately • The tolerance marked with ™ is only for reference; the actual diameter varies depending on the rigidity of the machine or workpiece, as well as the cutting conditions

INSERTS PG. 553

INSERT CLAMPING SCREW SET Cutter Type Catalog Number

Cutter Type

Catalog Number

Cutting Conditions

BFM6/11

BFM18/29 BFM20/32 BFM22/35 BFM24/39 BFM27/43 BFM30/48

Cutting Speed (SFM)

Feed (IPT)

Material

BFM8/14 BFM10/17.5 BFM12/20 BFM14/23 BFM16/26

S2SS-T6

S3S

Carbon/Alloy Steel Cast Iron Aluminum/ Non-Ferrous Material

100

.001

S2TS-T6

S4S-T15

100-165

552

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