carbidbt.gif (2827 bytes)
For use in Boring Heads

Designed with a length to diameter ratio of approximately 4-1/2 to 1 , this line of carbide boring tools features set-screw flats that position the cutting edge on exact centerline when used in a Criterion Boring Head.

They are available in two all-purpose grades of carbide - the ABT tools are a grade C-2 and are used on cast iron and all non-ferrous materials. The SBT tools are a grade C-6 and are intended for use on steel and other continuous chip materials. For the correct grade for your particular job we suggest you contact your carbide supplier or you may refer to the comparison charts found in most carbide catalogs.

Carbide Boring Tools with minimum boring diameters of 1/8, 3/16 and 1/4 feature a solid carbide neck and head.

 

SQUARE SHANKS
The Boring Tools are available with either round or square shanks. Both styles work equally as well when used with the Criterion Boring Head. The square shanks however are the better choice for holding in a turret post or any flat-bottomed tool holder.

When square shanks are required contact our customer service department for the correct Code No. and Tool No.

 

Dimensions of Square Shanks

 

SHANK
DIA.
STEEL NON-FERROUS MIN.
BORE
DIAMETER
OVERALL
LENGTH
MAX.
BORING
DEPTH
Code No. Tool No. Code No. Tool No.
3/8 10770 SBT-062A 15770 ABT-062A 1/16" 1-17/32" 1/4"
10771 SBT-093A 15771 ABT-093A 3/32" 1-3/4" 3/8"
10700 SBT-125A 15700 ABT-125A 1/8" 1-7/8" 1/2"
10701 SBT-187A 15701 ABT-187A 3/16" 2-5/32" 13/16"
10702 SBT-250A 15702 ABT-250A 1/4" 2-15/32" 1-1/8"
10703 SBT-312A 15703 ABT-312A 5/16" 2-13/16" 1-1/2"
10704 SBT-375A 15704 ABT-375A 3/8" 3-3/16" 1-7/8"
10705 SBT-500A 15705 ABT-500A 1/2" 3-1/2" 2-5/16"
1/2 10772 SBT-062A 15772 ABT-062A 1/16" 1-17/32" 1/4"
10773 SBT-093A 15773 ABT-093A 3/32" 1-3/4" 3/8"
10706 SBT-125B 15706 ABT-125B 1/8" 1-7/8" 1/2"
10707 SBT-187B 15707 ABT-187B 3/16" 2-5/32" 13/16"
10708 SBT-250B 15708 ABT-250B 1/4" 2-15/32" 1-1/8"
10709 SBT-312B 15709 ABT-312B 5/16" 2-13/16" 1-1/2"
10710 SBT-375B 15710 ABT-375B 3/8" 3-3/16" 1-3/4"
10711 SBT-500B 15711 ABT-500B 1/2" 3-1/2" 2-3/16"
5/8 10712 SBT-125C 15712 ABT-125C 1/8" 2-1/4" 1/2"
10713 SBT-187C 15713 ABT-187C 3/16" 2-9/16" 13/16"
10714 SBT-250C 15714 ABT-250C 1/4" 2-7/8" 1-1/8"
10715 SBT-312C 15715 ABT-312C 5/16" 3-1/4" 1-1/2"
10716 SBT-375C 15716 ABT-375C 3/8" 3-1/2" 1-3/4"
10717 SBT-500C 15717 ABT-500C 1/2" 3-13/16" 2-1/8"
10718 SBT-625C 15718 ABT-625C 5/8" 4-1/8" 2-1/2"
3/4 10720 SBT-500D 15720 ABT-500D 1/2" 4-1/4" 2-1/2"
10765 SBT-625D 15765 ABT-625D 5/8" 4-15/32" 2-3/4"
10721 SBT-750D 15721 ABT-750D 3/4" 4-11/16" 3"
10722 SBT-1000D 15722 ABT-1000D 1" 5-1/8" 3-1/2"
10723 SBT-1250D 15723 ABT-1250D 1-1/4" 5-9/16" 4"
1 10724

SBT-500E

15724 ABT-500E 1/2" 4-1/4" 2-3/8"
10766 SBT-625E 15766 ABT-625E 5/8" 4-15/32" 2-5/8"
10725 SBT-750E 15725 ABT-750E 3/4" 4-11/16" 2-7/8"
10726 SBT-1000E 15726 ABT-1000E 1" 5-1/8" 3-1/2"
10727 SBT-1250E 15727 ABT-1250E 1-1/4" 5-9/16" 3-7/8"

 

hssbt.gif (2888 bytes)
For use in Boring Heads

As in the carbide tools shown - this high speed line also features a length to diameter ratio of approximately 4-1/2 to 1. Made of M4 high speed steel and heat treated to 64-66 on the Rockwell "C" scale, these tools range in bore diameters from 1/8 to 1-1/4 inches. Lengths range from 1-7/8 to 5-9/16 inches.

The generous head size dissipates the heat generated during a cut - while the large flute area insures excellent chip clearance. One of the plus features of this style of tool, in both carbide and high speed, is its adaptability to modifications for special forms - i.e. back-boring, grooving, etc.

 

SQUARE SHANKS
The Boring Tools listed above are available with either round or square shanks. Both styles work equally as well when used with the Criterion Boring Head. The square shanks however are the better choice for holding in a turret post or any flat-bottomed tool holder.

When square shanks are required contact our customer service department for the correct Code No. and Tool No.

 

Dimensions of Square Shanks

 

SHANK
DIAMETER
CODE NO. TOOL NO. MIN.
BORE
DIAMETER
OVERALL
LENGTH
MAX.
BORING
DEPTH
3/8 10728 HSS-125A 1/8" 1-7/8" 1/2"
10729 HSS-187A 3/16" 2-5/32" 13/16"
10730 HSS-250A 1/4" 2-15/32" 1-1/8"
10731 HSS-312A 5/16" 2-13/16" 1-1/2"
10732 HSS-375A 3/8" 3-3/16" 1-7/8"
10733 HSS-500A 1/2" 3-1/2" 2-5/16"
1/2 10734 HSS-125B 1/8" 1-7/8" 1/2"
10735 HSS-187B 3/16" 2-5/32" 13/16"
10736 HSS-250B 1/4" 2-15/32" 1-1/8"
10737 HSS-312B 5/16" 2-13/16" 1-1/2"
10738 HSS-375B 3/8" 3-3/16" 1-3/4"
10739 HSS-500B 1/2" 3-1/2" 2-3/16"
5/8 10740 HSS-125C 1/8" 2-1/4" 1/2"
10741 HSS-187C 3/16" 2-9/16" 13/16"
10742 HSS-250C 1/4" 2-7/8" 1-1/8"
10743 HSS-312C 5/16" 3-1/4" 1-1/2"
10744 HSS-375C 3/8" 3-1/2" 1-3/4"
10745 HSS-500C 1/2" 3-13/16" 2-1/8"
10746 HSS-625C 5/8" 4-1/8" 2-1/2"
3/4 10748 HSS-500D 1/2" 4-1/4" 2-1/2"
10763 HSS-625D 5/8" 4-15/32" 2-3/4"
10749 HSS-750D 3/4" 4-11/16" 3"
10750 HSS-1000D 1" 5-1/8" 3-1/2"
10751 HSS-1250D 1-1/4" 5-9/16" 4"
1 10752 HSS-500E 1/2" 4-1/4" 2-3/8"
10764 HSS-625E 5/8" 4-15/32" 2-5/8"
10753 HSS-750E 3/4" 4-11/16" 2-7/8"
10754 HSS-1000E 1" 5-1/8" 3-1/2"
10755 HSS-1250E 1-1/4" 5-9/16" 3-7/8"