Drilling Product Catalog

DRILLING | T-A® Replaceable Insert Drilling System

T-A® Drill Inserts 1 Series: 17.53 mm - 24.40 mm (0.6900" - 0.9609")

Flat Bottom Geometry

Insert

HSS: Super Cobalt

Carbide: K20 (C2)

A30

Part No.

Part No.

Fractional Equivalent

D 1 mm

D 1 inch 0.7031 0.7087 0.7188 0.7283 0.7344 0.7480 0.7500 0.7656 0.7677 0.7813 0.7874 0.7969 0.8010 0.8071 0.8125 0.8268 0.8438 0.8465 0.8594 0.8661 0.8750 0.8858 0.8906 0.9055 0.9063 0.9219 0.9252 0.9375 0.9449

Series

TiN

TiN*

151T-.703-FB 151T-18-FB 151T-0023-FB 151T-18.5-FB 151T-.734-FB 151T-19-FB 151T-0024-FB 151T-.765-FB 151T-19.5-FB 151T-0025-FB 151T-20-FB 151T-.796-FB 151T-.801-FB 151T-20.5-FB 151T-0026-FB 151T-21-FB 151T-0027-FB 151T-21.5-FB 151T-.859-FB 151T-22-FB 151T-0028-FB 151T-22.5-FB 151T-.890-FB 151T-23-FB 151T-0029-FB 151T-.921-FB 151T-23.5-FB 151T-0030-FB 151T-24-FB

1C21T-.703-FB 1C21T-18-FB 1C21T-0023-FB 1C21T-18.5-FB 1C21T-.734-FB 1C21T-19-FB 1C21T-0024-FB 1C21T-.765-FB 1C21T-19.5-FB 1C21T-0025-FB 1C21T-20-FB 1C21T-.796-FB 1C21T-.801-FB 1C21T-20.5-FB 1C21T-0026-FB 1C21T-21-FB 1C21T-0027-FB 1C21T-21.5-FB 1C21T-.859-FB 1C21T-22-FB 1C21T-0028-FB 1C21T-22.5-FB 1C21T-.890-FB 1C21T-23-FB 1C21T-0029-FB 1C21T-.921-FB 1C21T-23.5-FB 1C21T-0030-FB 1C21T-24-FB

17.86 18.00 18.26 18.50 18.65 19.00 19.05 19.45 19.50 19.85 20.00 20.24 20.35 20.50 20.64 21.00 21.43 21.50 21.83 22.00 22.23 22.50 22.62 23.00 23.02 23.42 23.50 23.81 24.00

45/64

—

23/32

—

47/64

—

3/4

49/64

—

1

25/32

—

51/64

— —

13/16

—

27/32

—

55/64

—

7/8

—

57/64

—

1.5

29/32 59/64

—

15/16

—

* Carbide: K20 (C2) inserts with flat bottom geometry are nonstocked standard items. Process fees apply. NOTE: 1.5 series inserts fit into both 1 and 1.5 series holders. However, 1 series inserts ONLY fit into 1 series holders. See page A30: 7 for visual .

A30: 113 - 139

A30: 55 - 59

A30: 5 - 6

Coatings not listed above can be supplied as nonstocked standards. Process fees apply. Inserts sold in quantities of 2.

Key on A30: 2

FN

A30: 53

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