TOP DOG Centerdrills come in two form Types. The ST Type Centerdrill is our standard drill used for a wide range of general centering and spotting applications. The drill features a 118-degree tip angle and a single taper of 60-degrees. The B Type Bell Centerdrill is a dual-purpose drill used for the heaviest duty burnishing and chamfering applications. The drill features a 118-degree tip angle and a dual taper of 60-degrees followed by a 120-degree flare. The added flare creates a safety center on the part protecting the 60-degree taper and also facilitates lubrication.
Specifications and Price can be found below.
To place an order, you can find a list of our distributors here.
| Drill Diameter | Size | Shank Diameter | Overall Length | Bell Diamater | Material | Part Number | Quantity | Sale Price | Metric/SAE |
|---|---|---|---|---|---|---|---|---|---|
| 5/64 | 2ST | 3/16 | 1-7/8 | HSS | 500-1060 | 12 | $4.40 | SAE | |
| 7/64 | 3ST | 1/4 | 2 | HSS | 500-1100 | 12 | $4.55 | SAE | |
| 1/8 | 4ST | 5/16 | 2-1/8 | HSS | 500-1140 | 12 | $4.75 | SAE | |
| 3/16 | 5ST | 7/16 | 2-3/4 | HSS | 500-1210 | 12 | $7.22 | SAE | |
| 7/32 | 6ST | 1/2 | 3 | HSS | 500-1240 | 12 | $11.05 | SAE | |
| 1/4 | 7ST | 5/8 | 3-1/4 | HSS | 500-1270 | 12 | $14.45 | SAE | |
| 3/16 | 5ST | 7/16 | 2-3/4 | Cobalt | 500-1215 | 12 | $12.03 | SAE | |
| 7/32 | 6ST | 1/2 | 3 | Cobalt | 500-1245 | 12 | $16.69 | SAE | |
| 1/4 | 7ST | 5/8 | 3-1/4 | Cobalt | 500-1275 | 12 | $ 23.59 | SAE | |
| 7/64 | 14B | 5/16 | 2-1/8 | 0.250 | HSS | 515-1150 | 12 | $6.09 | SAE |
| 5/32 | 15B | 7/16 | 2-3/4 | 0.350 | HSS | 515-1220 | 12 | $8.31 | SAE |
| 3/16 | 16B | 1/2 | 3 | 0.400 | HSS | 515-1250 | 12 | $12.36 | SAE |
| 5/32 | 15B | 7/16 | 2-3/4 | 0.350 | Cobalt | 515-1225 | 12 | $19.49 | SAE |
| 3/16 | 16B | 1/2 | 3 | 0.400 | Cobalt | 515-1255 | 12 | $25.56 | SAE |
| 7/32 | 17B | 5/8 | 3-1/4 | 0.500 | Cobalt | 515-1285 | 12 | $33.60 | SAE |
| 1/4 | 18B | 3/4 | 3-1/2 | 0.600 | Cobalt | 515-1300 | 12 | $44.05 | SAE |