Image for illustration only. It may show a product series rather than the exact product offered.

#10 (.1935) 1/4-28 Threaded Drill BitCobalt 9/16 Long

Part numbers : RX1-12-04166 , 10COST , 12-04166

Unit of Measure: EA

This combination does not exist.

Up to 12 EA ready to ship on Monday 2026-09-28

Order before 17:00 CET on Friday 2026-09-25

Up to 19 EA ready to ship on Thursday 2026-10-01

Order before 17:00 CET on Friday 2026-09-25

17 EA available on request, fees apply

Special order from vendor stock.

Threaded cobalt drill bit for use with compatible 1/4-28 UNF threaded drill adaptors.

Manufacturer part number 10COST. This #10 drill has a nominal drill diameter of 0.1935 in (4.92 mm) and an overall length of 9/16 in (14.3 mm).

Cobalt construction for drilling hard, tough and high-tensile-strength materials
NAS 965 Type D construction
1/4-28 UNF Class 2A male thread
Threaded square-shank adaptor-drill configuration
Steam-oxide surface treatment

Suitable where a compact threaded drill is required, including work in confined areas. Verify tool, adaptor and task requirements before use.

These products might also be of interest