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")

Cast Iron Geometry

A30

Cast Iron Geometry Carbide: K10 (C3)

Insert

Carbide: N2

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

Diamond Film*

TiAlN

1N21D-.703 1N21D-18 1N21D-0023 1N21D-18.5 1N21D-.734 1N21D-19 1N21D-0024 1N21D-.765 1N21D-19.5 1N21D-0025 1N21D-20 1N21D-.796 1N21D-.801 1N21D-20.5 1N21D-0026 1N21D-21 1N21D-0027 1N21D-21.5 1N21D-.859 1N21D-22 1N21D-0028 1N21D-22.5 1N21D-.890 1N21D-23 1N21D-0029 1N21D-.921 1N21D-23.5 1N21D-0030 1N21D-24

1C31A-.703-CI 1C31A-18-CI 1C31A-0023-CI 1C31A-18.5-CI 1C31A-.734-CI 1C31A-19-CI 1C31A-0024-CI 1C31A-.765-CI 1C31A-19.5-CI 1C31A-0025-CI 1C31A-20-CI 1C31A-.796-CI 1C31A-.801-CI 1C31A-20.5-CI 1C31A-0026-CI 1C31A-21-CI 1C31A-0027-CI 1C31A-21.5-CI 1C31A-.859-CI 1C31A-22-CI 1C31A-0028-CI 1C31A-22.5-CI 1C31A-.890-CI 1C31A-23-CI 1C31A-0029-CI 1C31A-.921-CI 1C31A-23.5-CI 1C31A-0030-CI

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

— 1C31A-24-CI * Diamond film coated items are nonstocked standard and only available in standard geometry. For additional geometries, please contact Application Engineering. 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

HI, HR, CR, TC, SK, NP, IN, RN, CN, AN, BR, CI, CP, NC, WC, BT

www.alliedmachine.com | 1.330.343.4283

A30: 52